CINXE.COM

metaclass - Wikidata

<!DOCTYPE html> <html class="client-nojs" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>metaclass - Wikidata</title> <script>(function(){var className="client-js";var cookie=document.cookie.match(/(?:^|; )wikidatawikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"04f117d4-c7b0-4908-af91-fd4c8c496f56","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Q19478619","wgTitle":"Q19478619","wgCurRevisionId":2278455785,"wgRevisionId":2278455785,"wgArticleId":21084806,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":[], "wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikibase-item","wgRelevantPageName":"Q19478619","wgRelevantArticleId":21084806,"wgIsProbablyEditable":false,"wgRelevantPageIsProbablyEditable":false,"wgRestrictionEdit":["autoconfirmed"],"wgNoticeProject":"wikidata","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":30000,"wbUserPreferredContentLanguages":["en"],"wbUserSpecifiedLanguages":[],"wbCopyright":{"version":"wikibase-1","messageHtml": "By clicking \"publish\", you agree to the \u003Ca href=\"https://foundation.wikimedia.org/wiki/Terms_of_Use\" class=\"extiw\" title=\"wikimedia:Terms of Use\"\u003Eterms of use\u003C/a\u003E, and you irrevocably agree to release your contribution under the \u003Ca rel=\"nofollow\" class=\"external text\" href=\"https://creativecommons.org/publicdomain/zero/1.0/\"\u003ECreative Commons CC0 License\u003C/a\u003E."},"wbBadgeItems":{"Q17437798":"wb-badge-goodarticle","Q17437796":"wb-badge-featuredarticle","Q17559452":"wb-badge-recommendedarticle","Q17506997":"wb-badge-featuredlist","Q17580674":"wb-badge-featuredportal","Q20748091":"wb-badge-notproofread","Q20748094":"wb-badge-problematic","Q20748092":"wb-badge-proofread","Q20748093":"wb-badge-validated","Q28064618":"wb-badge-digitaldocument","Q51759403":"wb-badge-goodlist","Q70893996":"wb-badge-redirect-sitelink","Q70894304":"wb-badge-redirect-intentional-sitelink"},"wbMultiLingualStringLimit":250,"wbTaintedReferencesEnabled":true, "wbIsEditView":true,"wbEntityId":"Q19478619","wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"personal","wgULSisCompactLinksEnabled":true,"wgVector2022LanguageInHeader":false,"wgULSisLanguageSelectorEmpty":false,"wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"]};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","wikibase.alltargets":"ready","wikibase.desktop":"ready","jquery.wikibase.toolbar.styles":"ready","skins.vector.styles.legacy":"ready","jquery.makeCollapsible.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","codex-search-styles":"ready","ext.uls.pt":"ready","ext.wikidata-org.badges":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["wikibase.entityPage.entityLoaded","wikibase.ui.entityViewInit","site","mediawiki.page.ready","jquery.makeCollapsible", "skins.vector.legacy.js","wikibase.ui.entitysearch","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.Search","ext.gadget.AuthorityControl","ext.gadget.SiteIdToInterwiki","ext.gadget.ProtectionIndicators","ext.gadget.imagelinks","ext.gadget.formWizard","ext.urlShortener.toolbar","ext.centralauth.centralautologin","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.citoid.wikibase.init","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.wikimediaEvents.wikibase","ext.navigationTiming","ext.uls.compactlinks","ext.uls.interface","propertySuggester.suggestions","wikibase.quality.constraints.suggestions","wikibase.quality.constraints.gadget","ext.checkUser.clientHints"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&amp;modules=codex-search-styles%7Cext.uls.pt%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikidata-org.badges%7Cext.wikimediaBadges%7Cjquery.makeCollapsible.styles%7Cjquery.wikibase.toolbar.styles%7Cskins.vector.styles.legacy%7Cwikibase.alltargets%2Cdesktop&amp;only=styles&amp;skin=vector"> <script async="" src="/w/load.php?lang=en&amp;modules=startup&amp;only=scripts&amp;raw=1&amp;skin=vector"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&amp;modules=site.styles&amp;only=styles&amp;skin=vector"> <meta name="generator" content="MediaWiki 1.44.0-wmf.5"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:title" content="metaclass"> <meta name="description" content="a class which has instances that are all themselves classes"> <meta property="og:description" content="a class which has instances that are all themselves classes"> <meta property="og:type" content="summary"> <meta name="viewport" content="width=1120"> <link rel="alternate" href="https://www.wikidata.org/wiki/Special:EntityData/Q19478619.json" type="application/json"> <link rel="alternate" href="https://www.wikidata.org/wiki/Special:EntityData/Q19478619.php" type="application/vnd.php.serialized"> <link rel="alternate" href="https://www.wikidata.org/wiki/Special:EntityData/Q19478619.n3" type="text/n3"> <link rel="alternate" href="https://www.wikidata.org/wiki/Special:EntityData/Q19478619.ttl" type="text/turtle"> <link rel="alternate" href="https://www.wikidata.org/wiki/Special:EntityData/Q19478619.nt" type="application/n-triples"> <link rel="alternate" href="https://www.wikidata.org/wiki/Special:EntityData/Q19478619.rdf" type="application/rdf+xml"> <link rel="alternate" href="https://www.wikidata.org/wiki/Special:EntityData/Q19478619.jsonld" type="application/ld+json"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//m.wikidata.org/wiki/Q19478619"> <link rel="apple-touch-icon" href="/static/apple-touch/wikidata.png"> <link rel="icon" href="/static/favicon/wikidata.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikidata (en)"> <link rel="EditURI" type="application/rsd+xml" href="//www.wikidata.org/w/api.php?action=rsd"> <link rel="canonical" href="https://www.wikidata.org/wiki/Q19478619"> <link rel="license" href="/wiki/Wikidata:Copyright"> <link rel="alternate" type="application/atom+xml" title="Wikidata Atom feed" href="/w/index.php?title=Special:RecentChanges&amp;feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin-vector-legacy mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Q19478619 rootpage-Q19478619 skin-vector action-view wb-entitypage wb-itempage wb-itempage-Q19478619"><div id="mw-page-base" class="noprint"></div> <div id="mw-head-base" class="noprint"></div> <div id="content" class="mw-body" role="main"> <a id="top"></a> <div id="siteNotice"><!-- CentralNotice --></div> <div class="mw-indicators"> </div> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="wikibase-title "> <span class="wikibase-title-label">metaclass</span> <span class="wikibase-title-id">(Q19478619)</span> </span></h1> <div id="bodyContent" class="vector-body"> <div id="siteSub" class="noprint">From Wikidata</div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="contentSub2"></div> <div id="jump-to-nav"></div> <a class="mw-jump-link" href="#mw-head">Jump to navigation</a> <a class="mw-jump-link" href="#searchInput">Jump to search</a> <div id="mw-content-text" class="mw-body-content"><div id="wb-item-Q19478619" class="wikibase-entityview wb-item" lang="en" dir="ltr"> <div class="wikibase-entityview-main"><div class="wikibase-entitytermsview"> <div class="wikibase-entitytermsview-heading"> <div class="wikibase-entitytermsview-heading-description ">a class which has instances that are all themselves classes</div><div class="wikibase-entitytermsview-heading-aliases "><ul class="wikibase-entitytermsview-aliases"><li class="wikibase-entitytermsview-aliases-alias" data-aliases-separator="|">Wikidata metaclass</li><li class="wikibase-entitytermsview-aliases-alias" data-aliases-separator="|">Wikidata metaclasses</li></ul></div> </div> <div class="wikibase-entitytermsview-entitytermsforlanguagelistview "><table class="wikibase-entitytermsforlanguagelistview"> <thead class="wikibase-entitytermsforlanguagelistview-header"> <tr class="wikibase-entitytermsforlanguagelistview-header-row"> <th scope="col" class="wikibase-entitytermsforlanguagelistview-cell wikibase-entitytermsforlanguagelistview-language">Language</th> <th scope="col" class="wikibase-entitytermsforlanguagelistview-cell wikibase-entitytermsforlanguagelistview-label">Label</th> <th scope="col" class="wikibase-entitytermsforlanguagelistview-cell wikibase-entitytermsforlanguagelistview-description">Description</th> <th scope="col" class="wikibase-entitytermsforlanguagelistview-cell wikibase-entitytermsforlanguagelistview-aliases">Also known as</th> </tr> </thead> <tbody class="wikibase-entitytermsforlanguagelistview-listview"><tr class="wikibase-entitytermsforlanguageview wikibase-entitytermsforlanguageview-en" > <th class="wikibase-entitytermsforlanguageview-language">English</th> <td class="wikibase-entitytermsforlanguageview-label"><div class="wikibase-labelview " dir="ltr" lang="en"><div class="wikibase-labelview-container"><span class="wikibase-labelview-text">metaclass</span></div></div></td> <td class="wikibase-entitytermsforlanguageview-description"><div class="wikibase-descriptionview " dir="ltr" lang="en"><div class="wikibase-descriptionview-container"><span class="wikibase-descriptionview-text">a class which has instances that are all themselves classes</span></div></div></td> <td class="wikibase-entitytermsforlanguageview-aliases"><div class="wikibase-aliasesview "> <ul class="wikibase-aliasesview-list" dir="ltr" lang="en"><li class="wikibase-aliasesview-list-item">Wikidata metaclass</li><li class="wikibase-aliasesview-list-item">Wikidata metaclasses</li></ul> </div></td> </tr></tbody> </table></div> </div><div id="toc"></div><h2 class="wb-section-heading section-heading wikibase-statements" dir="auto" id="claims">Statements</h2><div class="wikibase-statementgrouplistview"><div class="wikibase-listview"><div class="wikibase-statementgroupview" id="P31" data-property-id="P31"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P31" href="/wiki/Property:P31">instance of</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$08b3225a-4bf0-08c3-267b-87f555b870c4" class="wikibase-statementview wikibase-statement-Q19478619$08b3225a-4bf0-08c3-267b-87f555b870c4 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-42d54cbd95ec80d030267c364c440eb9d363819d"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q151885" href="/wiki/Q151885">concept</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div><div id="Q19478619$71ce12a5-4f1a-9631-6ed2-681d3dc764ff" class="wikibase-statementview wikibase-statement-Q19478619$71ce12a5-4f1a-9631-6ed2-681d3dc764ff wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-4dd4b4d7b15d17a6bcb0de484994150b059c0259"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q19868531" href="/wiki/Q19868531">formal ontology concept</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div><div id="Q19478619$a8e83fea-461e-52a7-8a29-dd323b223634" class="wikibase-statementview wikibase-statement-Q19478619$a8e83fea-461e-52a7-8a29-dd323b223634 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-9d31d99ce62f7f1424d6d2be409f25a62397445f"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q23958852" href="/wiki/Q23958852">variable-order class</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P279" data-property-id="P279"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P279" href="/wiki/Property:P279">subclass of</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$316e4086-469e-b317-2e59-61c087043264" class="wikibase-statementview wikibase-statement-Q19478619$316e4086-469e-b317-2e59-61c087043264 wb-preferred"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-preferred" title="Preferred rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-33c0fd1431aa0fb276f87bb51b4a956d9440bb15"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q16889133" href="/wiki/Q16889133">class</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P361" data-property-id="P361"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P361" href="/wiki/Property:P361">part of</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$d1e4f898-426c-4ef6-3734-7305e854bf00" class="wikibase-statementview wikibase-statement-Q19478619$d1e4f898-426c-4ef6-3734-7305e854bf00 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-835ceaa54f64afacde339011973c19ef6cbabfa6"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q324254" href="/wiki/Q324254">ontology</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P1269" data-property-id="P1269"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P1269" href="/wiki/Property:P1269">facet of</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$c4c033b7-41dd-3d67-2aa1-192df55fa453" class="wikibase-statementview wikibase-statement-Q19478619$c4c033b7-41dd-3d67-2aa1-192df55fa453 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-14a9f94065950da40651348588caf94727670143"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q54837" href="/wiki/Q54837">Semantic Web</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P5008" data-property-id="P5008"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P5008" href="/wiki/Property:P5008">on focus list of Wikimedia project</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$64B35D5E-DF58-4359-BB04-E4742F0A13D2" class="wikibase-statementview wikibase-statement-Q19478619$64B35D5E-DF58-4359-BB04-E4742F0A13D2 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-25626b3f3cf752a34ec1e4705ba2288013a84078"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q68235346" href="/wiki/Q68235346">WikiProject Q68235346</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P5869" data-property-id="P5869"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P5869" href="/wiki/Property:P5869">model item</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$5C9DE52F-42F7-4066-B4B0-3FE1890CAC84" class="wikibase-statementview wikibase-statement-Q19478619$5C9DE52F-42F7-4066-B4B0-3FE1890CAC84 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-45663dda76b99f8f15d1a391e323cafa56411b34"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q24017414" href="/wiki/Q24017414">second-order class</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"><div class="wikibase-listview"><div class="wikibase-snaklistview"> <div class="wikibase-snaklistview-listview"><div class="wikibase-snakview wikibase-snakview-37d722d3ec803f752620b4a415ce3100d1ff1f4c"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"><a title="Property:P11527" href="/wiki/Property:P11527">applies to use with property</a></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Property:P279" href="/wiki/Property:P279">subclass of</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> </div></div></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P6104" data-property-id="P6104"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P6104" href="/wiki/Property:P6104">maintained by WikiProject</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$EA7AAACF-FB0F-4EEA-AE00-D2E7F7B5F971" class="wikibase-statementview wikibase-statement-Q19478619$EA7AAACF-FB0F-4EEA-AE00-D2E7F7B5F971 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-2bcf963484ee556d691849e71ea3ae951738fc36"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q60005226" href="/wiki/Q60005226">WikiProject Ontology</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P1889" data-property-id="P1889"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P1889" href="/wiki/Property:P1889">different from</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$dda59692-4dbb-55a0-c732-5b0a111947ca" class="wikibase-statementview wikibase-statement-Q19478619$dda59692-4dbb-55a0-c732-5b0a111947ca wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-2247b8cd7827b9a7e43e4882c81e5029d8bfe886"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q19828331" href="/wiki/Q19828331">Metaclass</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"><div class="wikibase-listview"><div class="wikibase-snaklistview"> <div class="wikibase-snaklistview-listview"><div class="wikibase-snakview wikibase-snakview-3ee85f87aa07bea0f614c2220e1ccdf8d25de085"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"><a title="Property:P1013" href="/wiki/Property:P1013">criterion used</a></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q24005632" href="/wiki/Q24005632">descriptive page and disambiguation page have to be in different items</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> </div><div class="wikibase-snaklistview"> <div class="wikibase-snaklistview-listview"><div class="wikibase-snakview wikibase-snakview-870ca0a0290031a74560d447890601fbd4c57a39"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"><a title="Property:P8338" href="/wiki/Property:P8338">applies to name of object</a></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><span lang="en" class="wb-monolingualtext-value">metaclass</span> <span class="wb-monolingualtext-language-name" dir="auto">(English)</span></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> </div></div></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div><div id="Q19478619$b3612ae4-482f-20c0-5c5b-d2c8784add0d" class="wikibase-statementview wikibase-statement-Q19478619$b3612ae4-482f-20c0-5c5b-d2c8784add0d wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-15af4a68f4b1ac41dbd78221206b0deecb96d112"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q123369568" href="/wiki/Q123369568">M茅taclasse</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"><div class="wikibase-listview"><div class="wikibase-snaklistview"> <div class="wikibase-snaklistview-listview"><div class="wikibase-snakview wikibase-snakview-3ee85f87aa07bea0f614c2220e1ccdf8d25de085"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"><a title="Property:P1013" href="/wiki/Property:P1013">criterion used</a></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q24005632" href="/wiki/Q24005632">descriptive page and disambiguation page have to be in different items</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> </div><div class="wikibase-snaklistview"> <div class="wikibase-snaklistview-listview"><div class="wikibase-snakview wikibase-snakview-5969abea06e1f560d32adc543321dd66193c22ed"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"><a title="Property:P8338" href="/wiki/Property:P8338">applies to name of object</a></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><span lang="fr" class="wb-monolingualtext-value">m茅taclasse</span> <span class="wb-monolingualtext-language-name" dir="auto">(French)</span></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> </div></div></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div><div id="Q19478619$01f6914c-46b1-61d5-3c48-6aa85ab49974" class="wikibase-statementview wikibase-statement-Q19478619$01f6914c-46b1-61d5-3c48-6aa85ab49974 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-8417cc03e9a6d183e4d078cbfd4b932d49ca7554"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q1924819" href="/wiki/Q1924819">metaclass</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div><div id="Q19478619$4EFAC0A3-1DDB-48F3-86DF-D5CFBAD2900F" class="wikibase-statementview wikibase-statement-Q19478619$4EFAC0A3-1DDB-48F3-86DF-D5CFBAD2900F wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-7f016d8c018986d1d0ad609173b21090ee6225e9"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q24017414" href="/wiki/Q24017414">second-order class</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P373" data-property-id="P373"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P373" href="/wiki/Property:P373">Commons category</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$60093456-482f-cc8f-cb54-5c94dfe23984" class="wikibase-statementview wikibase-statement-Q19478619$60093456-482f-cc8f-cb54-5c94dfe23984 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-ca34c9683aeea4c72cdbe469ce459613827471eb"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak">Metaclass</div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P910" data-property-id="P910"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P910" href="/wiki/Property:P910">topic's main category</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$dd987453-4b34-8368-3c38-a3dd85410f0a" class="wikibase-statementview wikibase-statement-Q19478619$dd987453-4b34-8368-3c38-a3dd85410f0a wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-b86ebc82bb4280ffeebe8cc544b6748a503a5538"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a title="Q19793193" href="/wiki/Q19793193">Category:Metaclass</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P2559" data-property-id="P2559"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P2559" href="/wiki/Property:P2559">Wikidata usage instructions</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$072df9a2-4a6e-f167-7203-292b76caec16" class="wikibase-statementview wikibase-statement-Q19478619$072df9a2-4a6e-f167-7203-292b76caec16 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-ab2dc7650bb1c3f7d1185b7eb12a666c7371cf42"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><span lang="en" class="wb-monolingualtext-value">A metaclass in Wikidata, e.g., watercraft type (Q16335899), ship type (Q2235308), or second-order class (Q24017414), is an entity that can have other entities that are an instance of (P31) of it that in turn can have yet other entities that are an instance of (P31) of them. All metaclasses are thus classes. All metaclasses are implicitly an instance of (P31) metaclass (Q19478619). These implicit instance of (P31) statements are not all observable in Wikidata. Only a very few metaclasses should be be explicitly an instance of (P31) metaclass (Q19478619). Most metaclasses are fixed-order classes, e.g., their instances are classes of individuals, and should be an instance of (P31) an instance of (P31) fixed-order class (Q23959932) such as first-order class (Q104086571), second-order class (Q24017414), or, less commonly, third-order class (Q24017465).</span> <span class="wb-monolingualtext-language-name" dir="auto">(English)</span></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div></div></div><h2 class="wb-section-heading section-heading wikibase-statements wikibase-statements-identifiers" dir="auto" id="identifiers">Identifiers</h2><div class="wikibase-statementgrouplistview"><div class="wikibase-listview"><div class="wikibase-statementgroupview" id="P11012" data-property-id="P11012"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P11012" href="/wiki/Property:P11012">EU Knowledge Graph item ID</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$3E84358A-2DC2-4A93-B851-E89E5CBA09B5" class="wikibase-statementview wikibase-statement-Q19478619$3E84358A-2DC2-4A93-B851-E89E5CBA09B5 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-a9ee308c7d4ef05feb32f2dda739abe8055ac501"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a class="wb-external-id external" href="https://linkedopendata.eu/wiki/Item:Q3111437" rel="nofollow">Q3111437</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div><div class="wikibase-statementgroupview" id="P646" data-property-id="P646"> <div class="wikibase-statementgroupview-property"> <div class="wikibase-statementgroupview-property-label" dir="auto"><a title="Property:P646" href="/wiki/Property:P646">Freebase ID</a></div> </div> <div class="wikibase-statementlistview"> <div class="wikibase-statementlistview-listview"> <div id="Q19478619$1948A66D-9EE8-4019-A63C-C0AF0E086739" class="wikibase-statementview wikibase-statement-Q19478619$1948A66D-9EE8-4019-A63C-C0AF0E086739 wb-normal"> <div class="wikibase-statementview-rankselector"><div class="wikibase-rankselector ui-state-disabled"> <span class="ui-icon ui-icon-rankselector wikibase-rankselector-normal" title="Normal rank"></span> </div></div> <div class="wikibase-statementview-mainsnak-container"> <div class="wikibase-statementview-mainsnak" dir="auto"><div class="wikibase-snakview wikibase-snakview-b3c7c14d6a3d96da45032f9fc3483d50502f22bc"> <div class="wikibase-snakview-property-container"> <div class="wikibase-snakview-property" dir="auto"></div> </div> <div class="wikibase-snakview-value-container" dir="auto"> <div class="wikibase-snakview-typeselector"></div> <div class="wikibase-snakview-body"> <div class="wikibase-snakview-value wikibase-snakview-variation-valuesnak"><a class="wb-external-id external" href="https://www.google.com/search?kgmid=/m/012zl948" rel="nofollow">/m/012zl948</a></div> <div class="wikibase-snakview-indicators"></div> </div> </div> </div></div> <div class="wikibase-statementview-qualifiers"></div> </div> <div class="wikibase-statementview-references-container"> <div class="wikibase-statementview-references-heading">0 references</div> <div class="wikibase-statementview-references "></div> </div> </div> </div> </div> </div></div></div></div> <div class="wikibase-entityview-side"><div class="wikibase-pageImage"> <div class="help"> <span class="wb-help-field-hint wikibase-toolbar-item wikibase-wbtooltip" title="This image is taken from the statements of this Item. You can adjust the image by changing the statement.">&nbsp;</span> </div> </div><h2 class="wb-section-heading section-heading wikibase-sitelinks" dir="auto" id="sitelinks">Sitelinks</h2><div class="wikibase-sitelinkgrouplistview"><div class="wikibase-listview"><div class="wikibase-sitelinkgroupview mw-collapsible" data-wb-sitelinks-group="wikipedia"> <div class="wikibase-sitelinkgroupview-heading-section"> <div class="mw-collapsible-toggle-placeholder"></div> <div class="wikibase-sitelinkgroupview-heading-container"> <h3 class="wb-sitelinks-heading" dir="auto" id="sitelinks-wikipedia">Wikipedia<span class="wikibase-sitelinkgroupview-counter">(3 entries)</span></h3> </div> </div> <div class="mw-collapsible-content"> <div class="wikibase-sitelinklistview"> <ul class="wikibase-sitelinklistview-listview"><li class="wikibase-sitelinkview wikibase-sitelinkview-enwiki" data-wb-siteid="enwiki"> <span class="wikibase-sitelinkview-siteid-container"> <span class="wikibase-sitelinkview-siteid wikibase-sitelinkview-siteid-enwiki" title="English">enwiki</span> </span><span class="wikibase-sitelinkview-link wikibase-sitelinkview-link-enwiki"><span class="wikibase-sitelinkview-page" dir="auto" lang="en"><a href="https://en.wikipedia.org/wiki/Metaclass_(knowledge_representation)" hreflang="en" title="Metaclass (knowledge representation)">Metaclass (knowledge representation)</a></span><span class="wikibase-badgeselector wikibase-sitelinkview-badges"></span></span> </li><li class="wikibase-sitelinkview wikibase-sitelinkview-frwiki" data-wb-siteid="frwiki"> <span class="wikibase-sitelinkview-siteid-container"> <span class="wikibase-sitelinkview-siteid wikibase-sitelinkview-siteid-frwiki" title="French">frwiki</span> </span><span class="wikibase-sitelinkview-link wikibase-sitelinkview-link-frwiki"><span class="wikibase-sitelinkview-page" dir="auto" lang="fr"><a href="https://fr.wikipedia.org/wiki/M%C3%A9taclasse_(web_s%C3%A9mantique)" hreflang="fr" title="M茅taclasse (web s茅mantique)">M茅taclasse (web s茅mantique)</a></span><span class="wikibase-badgeselector wikibase-sitelinkview-badges"></span></span> </li><li class="wikibase-sitelinkview wikibase-sitelinkview-iawiki" data-wb-siteid="iawiki"> <span class="wikibase-sitelinkview-siteid-container"> <span class="wikibase-sitelinkview-siteid wikibase-sitelinkview-siteid-iawiki" title="Interlingua">iawiki</span> </span><span class="wikibase-sitelinkview-link wikibase-sitelinkview-link-iawiki"><span class="wikibase-sitelinkview-page" dir="auto" lang="ia"><a href="https://ia.wikipedia.org/wiki/Metaclasse" hreflang="ia" title="Metaclasse">Metaclasse</a></span><span class="wikibase-badgeselector wikibase-sitelinkview-badges"></span></span> </li></ul> </div> </div> </div><div class="wikibase-sitelinkgroupview" data-wb-sitelinks-group="wikibooks"> <div class="wikibase-sitelinkgroupview-heading-section"> <div class="mw-collapsible-toggle-placeholder"></div> <div class="wikibase-sitelinkgroupview-heading-container"> <h3 class="wb-sitelinks-heading" dir="auto" id="sitelinks-wikibooks">Wikibooks<span class="wikibase-sitelinkgroupview-counter">(0 entries)</span></h3> </div> </div> <div class="mw-collapsible-content"> <div class="wikibase-sitelinklistview"> <ul class="wikibase-sitelinklistview-listview"></ul> </div> </div> </div><div class="wikibase-sitelinkgroupview" data-wb-sitelinks-group="wikinews"> <div class="wikibase-sitelinkgroupview-heading-section"> <div class="mw-collapsible-toggle-placeholder"></div> <div class="wikibase-sitelinkgroupview-heading-container"> <h3 class="wb-sitelinks-heading" dir="auto" id="sitelinks-wikinews">Wikinews<span class="wikibase-sitelinkgroupview-counter">(0 entries)</span></h3> </div> </div> <div class="mw-collapsible-content"> <div class="wikibase-sitelinklistview"> <ul class="wikibase-sitelinklistview-listview"></ul> </div> </div> </div><div class="wikibase-sitelinkgroupview" data-wb-sitelinks-group="wikiquote"> <div class="wikibase-sitelinkgroupview-heading-section"> <div class="mw-collapsible-toggle-placeholder"></div> <div class="wikibase-sitelinkgroupview-heading-container"> <h3 class="wb-sitelinks-heading" dir="auto" id="sitelinks-wikiquote">Wikiquote<span class="wikibase-sitelinkgroupview-counter">(0 entries)</span></h3> </div> </div> <div class="mw-collapsible-content"> <div class="wikibase-sitelinklistview"> <ul class="wikibase-sitelinklistview-listview"></ul> </div> </div> </div><div class="wikibase-sitelinkgroupview" data-wb-sitelinks-group="wikisource"> <div class="wikibase-sitelinkgroupview-heading-section"> <div class="mw-collapsible-toggle-placeholder"></div> <div class="wikibase-sitelinkgroupview-heading-container"> <h3 class="wb-sitelinks-heading" dir="auto" id="sitelinks-wikisource">Wikisource<span class="wikibase-sitelinkgroupview-counter">(0 entries)</span></h3> </div> </div> <div class="mw-collapsible-content"> <div class="wikibase-sitelinklistview"> <ul class="wikibase-sitelinklistview-listview"></ul> </div> </div> </div><div class="wikibase-sitelinkgroupview" data-wb-sitelinks-group="wikiversity"> <div class="wikibase-sitelinkgroupview-heading-section"> <div class="mw-collapsible-toggle-placeholder"></div> <div class="wikibase-sitelinkgroupview-heading-container"> <h3 class="wb-sitelinks-heading" dir="auto" id="sitelinks-wikiversity">Wikiversity<span class="wikibase-sitelinkgroupview-counter">(0 entries)</span></h3> </div> </div> <div class="mw-collapsible-content"> <div class="wikibase-sitelinklistview"> <ul class="wikibase-sitelinklistview-listview"></ul> </div> </div> </div><div class="wikibase-sitelinkgroupview" data-wb-sitelinks-group="wikivoyage"> <div class="wikibase-sitelinkgroupview-heading-section"> <div class="mw-collapsible-toggle-placeholder"></div> <div class="wikibase-sitelinkgroupview-heading-container"> <h3 class="wb-sitelinks-heading" dir="auto" id="sitelinks-wikivoyage">Wikivoyage<span class="wikibase-sitelinkgroupview-counter">(0 entries)</span></h3> </div> </div> <div class="mw-collapsible-content"> <div class="wikibase-sitelinklistview"> <ul class="wikibase-sitelinklistview-listview"></ul> </div> </div> </div><div class="wikibase-sitelinkgroupview" data-wb-sitelinks-group="wiktionary"> <div class="wikibase-sitelinkgroupview-heading-section"> <div class="mw-collapsible-toggle-placeholder"></div> <div class="wikibase-sitelinkgroupview-heading-container"> <h3 class="wb-sitelinks-heading" dir="auto" id="sitelinks-wiktionary">Wiktionary<span class="wikibase-sitelinkgroupview-counter">(0 entries)</span></h3> </div> </div> <div class="mw-collapsible-content"> <div class="wikibase-sitelinklistview"> <ul class="wikibase-sitelinklistview-listview"></ul> </div> </div> </div><div class="wikibase-sitelinkgroupview" data-wb-sitelinks-group="special"> <div class="wikibase-sitelinkgroupview-heading-section"> <div class="mw-collapsible-toggle-placeholder"></div> <div class="wikibase-sitelinkgroupview-heading-container"> <h3 class="wb-sitelinks-heading" dir="auto" id="sitelinks-special">Multilingual sites<span class="wikibase-sitelinkgroupview-counter">(0 entries)</span></h3> </div> </div> <div class="mw-collapsible-content"> <div class="wikibase-sitelinklistview"> <ul class="wikibase-sitelinklistview-listview"></ul> </div> </div> </div></div></div></div> </div> <!-- Saved in parser cache with key wikidatawiki:pcache:idhash:21084806-0!termboxVersion=1!wb=3!wbMobile=0 and timestamp 20241122221018 and revision id 2278455785. Rendering was triggered because: page-view --> <!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&amp;useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://www.wikidata.org/w/index.php?title=Q19478619&amp;oldid=2278455785">https://www.wikidata.org/w/index.php?title=Q19478619&amp;oldid=2278455785</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </div> <div id="mw-navigation"> <h2>Navigation menu</h2> <div id="mw-head"> <nav id="p-personal" class="mw-portlet mw-portlet-personal vector-user-menu-legacy vector-menu" aria-labelledby="p-personal-label" > <h3 id="p-personal-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Personal tools</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-uls" class="mw-list-item active"><a class="uls-trigger" href="#"><span>English</span></a></li><li id="pt-anonuserpage" class="mw-list-item"><span title="The user page for the IP address you are editing as">Not logged in</span></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li><li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-createaccount" class="mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&amp;returnto=Q19478619" title="You are encouraged to create an account and log in; however, it is not mandatory"><span>Create account</span></a></li><li id="pt-login" class="mw-list-item"><a href="/w/index.php?title=Special:UserLogin&amp;returnto=Q19478619" title="You are encouraged to log in; however, it is not mandatory [o]" accesskey="o"><span>Log in</span></a></li> </ul> </div> </nav> <div id="left-navigation"> <nav id="p-namespaces" class="mw-portlet mw-portlet-namespaces vector-menu-tabs vector-menu-tabs-legacy vector-menu" aria-labelledby="p-namespaces-label" > <h3 id="p-namespaces-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Namespaces</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected mw-list-item"><a href="/wiki/Q19478619" title="View the item [c]" accesskey="c"><span>Item</span></a></li><li id="ca-talk" class="mw-list-item"><a href="/wiki/Talk:Q19478619" rel="discussion" title="Discussion about the content page [t]" accesskey="t"><span>Discussion</span></a></li> </ul> </div> </nav> <nav id="p-variants" class="mw-portlet mw-portlet-variants emptyPortlet vector-menu-dropdown vector-menu" aria-labelledby="p-variants-label" > <input type="checkbox" id="p-variants-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-variants" class="vector-menu-checkbox" aria-labelledby="p-variants-label" > <label id="p-variants-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">English</span> </label> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </nav> </div> <div id="right-navigation"> <nav id="p-views" class="mw-portlet mw-portlet-views vector-menu-tabs vector-menu-tabs-legacy vector-menu" aria-labelledby="p-views-label" > <h3 id="p-views-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Views</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected mw-list-item"><a href="/wiki/Q19478619"><span>Read</span></a></li><li id="ca-history" class="mw-list-item"><a href="/w/index.php?title=Q19478619&amp;action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </nav> <nav id="p-cactions" class="mw-portlet mw-portlet-cactions emptyPortlet vector-menu-dropdown vector-menu" aria-labelledby="p-cactions-label" title="More options" > <input type="checkbox" id="p-cactions-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-cactions" class="vector-menu-checkbox" aria-labelledby="p-cactions-label" > <label id="p-cactions-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">More</span> </label> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </nav> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box"> <h3 >Search</h3> <form action="/w/index.php" id="searchform" class="vector-search-box-form"> <div id="simpleSearch" class="vector-search-box-inner" data-search-loc="header-navigation"> <input class="vector-search-box-input" type="search" name="search" placeholder="Search Wikidata" aria-label="Search Wikidata" autocapitalize="sentences" title="Search Wikidata [f]" accesskey="f" id="searchInput" > <input type="hidden" name="title" value="Special:Search"> <input id="mw-searchButton" class="searchButton mw-fallbackSearchButton" type="submit" name="fulltext" title="Search the pages for this text" value="Search"> <input id="searchButton" class="searchButton" type="submit" name="go" title="Go to a page with this exact name if it exists" value="Go"> </div> </form> </div> </div> </div> <div id="mw-panel" class="vector-legacy-sidebar"> <div id="p-logo" role="banner"> <a class="mw-wiki-logo" href="/wiki/Wikidata:Main_Page" title="Visit the main page"></a> </div> <nav id="p-navigation" class="mw-portlet mw-portlet-navigation vector-menu-portal portal vector-menu" aria-labelledby="p-navigation-label" > <h3 id="p-navigation-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Navigation</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Wikidata:Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Special:MyLanguage/Project:Community_portal" title="About the project, what you can do, where to find things"><span>Community portal</span></a></li><li id="n-villagepump" class="mw-list-item"><a href="/wiki/Wikidata:Project_chat"><span>Project chat</span></a></li><li id="n-special-newitem" class="mw-list-item"><a href="/wiki/Special:NewItem"><span>Create a new Item</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes in the wiki [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-wikibase-randomitem" class="mw-list-item"><a href="/wiki/Special:Random/Main" title="[x]" accesskey="x"><span>Random Item</span></a></li><li id="n-wikibase-queryservice" class="mw-list-item"><a href="//query.wikidata.org/"><span>Query Service</span></a></li><li id="n-nearby-pages-title" class="mw-list-item"><a href="/wiki/Special:Nearby"><span>Nearby</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Special:MyLanguage/Help:Contents" title="The place to find out"><span>Help</span></a></li><li id="n-sitesupport" class="mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&amp;utm_medium=sidebar&amp;utm_campaign=C13_wikidata.org&amp;uselang=en" title="Support us"><span>Donate</span></a></li> </ul> </div> </nav> <nav id="p-wikibase-lexeme-lexicographical-data" class="mw-portlet mw-portlet-wikibase-lexeme-lexicographical-data vector-menu-portal portal vector-menu" aria-labelledby="p-wikibase-lexeme-lexicographical-data-label" > <h3 id="p-wikibase-lexeme-lexicographical-data-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Lexicographical data</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-special-newlexeme" class="mw-list-item"><a href="/wiki/Special:NewLexeme"><span>Create a new Lexeme</span></a></li><li id="n-recentchanges-lexemes" class="mw-list-item"><a href="https://www.wikidata.org/wiki/Special:RecentChanges?namespace=146%3B147"><span>Recent changes</span></a></li><li id="n-wikibase-lexeme-randomlexeme" class="mw-list-item"><a href="/wiki/Special:Random/Lexeme"><span>Random Lexeme</span></a></li> </ul> </div> </nav> <nav id="p-tb" class="mw-portlet mw-portlet-tb vector-menu-portal portal vector-menu" aria-labelledby="p-tb-label" > <h3 id="p-tb-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Tools</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/Q19478619" title="A list of all wiki pages that link here [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Q19478619" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Q19478619&amp;oldid=2278455785" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Q19478619&amp;action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-wb-concept-uri" class="mw-list-item"><a href="http://www.wikidata.org/entity/Q19478619" title="URI that identifies the concept described by this Item"><span>Concept URI</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&amp;page=Q19478619&amp;id=2278455785&amp;wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&amp;url=https%3A%2F%2Fwww.wikidata.org%2Fwiki%2FQ19478619"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&amp;url=https%3A%2F%2Fwww.wikidata.org%2Fwiki%2FQ19478619"><span>Download QR code</span></a></li> </ul> </div> </nav> <nav id="p-coll-print_export" class="mw-portlet mw-portlet-coll-print_export vector-menu-portal portal vector-menu" aria-labelledby="p-coll-print_export-label" > <h3 id="p-coll-print_export-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Print/export</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Special:Book&amp;bookcmd=book_creator&amp;referer=Q19478619"><span>Create a book</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&amp;page=Q19478619&amp;action=show-download-screen"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Q19478619&amp;printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </nav> <nav id="p-wikibase-otherprojects" class="mw-portlet mw-portlet-wikibase-otherprojects emptyPortlet vector-menu-portal portal vector-menu" aria-labelledby="p-wikibase-otherprojects-label" > <h3 id="p-wikibase-otherprojects-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">In other projects</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </nav> </div> </div> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 22 November 2024, at 22:09.</li> <li id="footer-info-copyright">All structured data from the main, Property, Lexeme, and EntitySchema namespaces is available under the <a rel="nofollow" class="external text" href="//creativecommons.org/publicdomain/zero/1.0/">Creative Commons CC0 License</a>; text in the other namespaces is available under the <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution-ShareAlike License</a>; additional terms may apply. By using this site, you agree to the <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use">Terms of Use</a> and <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy Policy</a>.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Special:MyLanguage/Project:Introduction">About Wikidata</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Special:MyLanguage/Project:General_disclaimer">Disclaimers</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/www.wikidata.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//m.wikidata.org/w/index.php?title=Q19478619&amp;mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> <li id="footer-places-data-access"><a href="/wiki/Special:MyLanguage/Wikidata:Data_access">Data access</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> <script>(RLQ=window.RLQ||[]).push(function(){mw.log.warn("This page is using the deprecated ResourceLoader module \"codex-search-styles\".\n[1.43] Use a CodexModule with codexComponents to set your specific components used: https://www.mediawiki.org/wiki/Codex#Using_a_limited_subset_of_components");mw.config.set({"wgHostname":"mw-web.codfw.main-6fb798d4f9-llsrl","wgBackendResponseTime":109});});</script> </body> </html>

Pages: 1 2 3 4 5 6 7 8 9 10