RDFa Core Initial Context

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.1//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-2.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" version="RDFa 1.1"> <head about="http://www.w3.org/profile/rdfa-1.1.html"> <meta content="text/html; charset=UTF-8" http-equiv="content-type"/> <title>RDFa Core Initial Context</title> <link type="text/css" rel="stylesheet" href="https://www.w3.org/StyleSheets/TR/base.css"/> <style> td:first-child + td a { color:darkGreen} td:first-child + td { color:darkGreen} td, th { border: 0pt; padding: 5px; } th { text-align: center; font-weight: bold; background: lavender } tr:nth-child(even) { background: lavender} caption { font-weight: bold; padding-bottom: 10px; } </style> </head> <body about="http://www.w3.org/profile/rdfa-1.1" prefix=" rdfa: http://www.w3.org/ns/rdfa# rdfs: http://www.w3.org/2000/01/rdf-schema# dcterms: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/"> <div class="head"> <p><a href="https://www.w3.org/"> <img alt="W3C" src="https://www.w3.org/Icons/w3c_home" height="48" width="72" /> </a> </p> <h1 property="dcterms:title">RDFa Core Initial Context</h1> <p>This list of predefined prefixes have been defined for RDFa as an <a href="https://www.w3.org/TR/rdfa-core/#s_initialcontexts">“initial context”</a>: essentially, RDFa users can use these prefixes without having the obligation of defining the prefixes in the HTML code. The same list of prefixes have also been defined for JSON-LD as a <a href="https://www.w3.org/TR/json-ld/#the-context">JSON-LD Context</a> at the URI <code>http://www.w3.org/2013/json-ld-context/rdfa11</code>; JSON-LD users can use the <code>@context</code> key with that URI as a shorthand to use the same prefixes.</p> </div> <h2>Vocabulary Prefixes</h2> <table> <caption>Vocabulary Prefixes of W3C Documents (Recommendations or Notes)</caption> <thead> <tr> <th>Prefix</th> <th>URI</th> <th>Description</th> <th>For more details see</th> <th>Origin</th> </tr> </thead> <tbody> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">as</td> <td property="rdfa:uri">https://www.w3.org/ns/activitystreams#</td> <td property="dcterms:description">Activity Vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/activitystreams-vocabulary/">Activity Vocabulary</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">csvw</td> <td property="rdfa:uri">http://www.w3.org/ns/csvw#</td> <td property="dcterms:description">Metadata for Tabular Data</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/tabular-metadata/">Metadata Vocabulary for Tabular Data</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">dcat</td> <td property="rdfa:uri">http://www.w3.org/ns/dcat#</td> <td property="dcterms:description">Data Catalog Vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/vocab-dcat/">Data Catalog Vocabulary (DCAT)</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">dqv</td> <td property="rdfa:uri">http://www.w3.org/ns/dqv#</td> <td property="dcterms:description">Data Quality Vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/vocab-dqv/">Data on the Web Best Practices: Data Quality Vocabulary</a></td> <td>W3C WG Note</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">duv</td> <td property="rdfa:uri">https://www.w3.org/ns/duv#</td> <td property="dcterms:description">Dataset Usage Vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/vocab-duv/">Dataset Usage Vocabulary</a></td> <td>W3C WG Note</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">grddl</td> <td property="rdfa:uri">http://www.w3.org/2003/g/data-view#</td> <td property="dcterms:description">GRDDL</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2007/REC-grddl-20070911/">Gleaning Resource Descriptions from Dialects of Languages (GRDDL)</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">jsonld</td> <td property="rdfa:uri">http://www.w3.org/ns/json-ld#</td> <td property="dcterms:description">JSON-LD</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/json-ld/">JSON-LD 1.1, A JSON-based Serialization for Linked Data</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">ldp</td> <td property="rdfa:uri">http://www.w3.org/ns/ldp#</td> <td property="dcterms:description">Linked Data Platform Vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/ldp/">Linked Data Platform 1.0</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">ma</td> <td property="rdfa:uri">http://www.w3.org/ns/ma-ont#</td> <td property="dcterms:description">Ontology for Media Resources</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2012/REC-mediaont-10-20120209/">Ontology for Media Resources 1.0</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">oa</td> <td property="rdfa:uri">http://www.w3.org/ns/oa#</td> <td property="dcterms:description">Web Annotation Vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/annotation-vocab/">Web Annotation Vocabulary</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">odrl</td> <td property="rdfa:uri">http://www.w3.org/ns/odrl/2/</td> <td property="dcterms:description">ODRL Vocabulary & Expression 2.2</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/odrl-vocab/">ODRL Vocabulary & Expression 2.2</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">org</td> <td property="rdfa:uri">http://www.w3.org/ns/org#</td> <td property="dcterms:description">Organizations</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/vocab-org/">The Organization Ontology</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">owl</td> <td property="rdfa:uri">http://www.w3.org/2002/07/owl#</td> <td property="dcterms:description">OWL</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2009/REC-owl2-overview-20091027/">OWL Overview</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">prov</td> <td property="rdfa:uri">http://www.w3.org/ns/prov#</td> <td property="dcterms:description">Provenance Vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/prov-o/">Provenance Ontology</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">qb</td> <td property="rdfa:uri">http://purl.org/linked-data/cube#</td> <td property="dcterms:description">Data Cubes</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/vocab-data-cube/">The RDF Data Cube Vocabulary</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">rdf</td> <td property="rdfa:uri">http://www.w3.org/1999/02/22-rdf-syntax-ns#</td> <td property="dcterms:description">RDF</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2004/REC-rdf-mt-20040210/">RDF Semantics</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">rdfa</td> <td property="rdfa:uri">http://www.w3.org/ns/rdfa#</td> <td property="dcterms:description">RDFa Vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/rdfa-core/">RDFa Core 1.1</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">rdfs</td> <td property="rdfa:uri">http://www.w3.org/2000/01/rdf-schema#</td> <td property="dcterms:description">RDF Schema</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2004/REC-rdf-mt-20040210/">RDF Semantics</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">rif</td> <td property="rdfa:uri">http://www.w3.org/2007/rif#</td> <td property="dcterms:description">RIF</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2010/NOTE-rif-overview-20100622/">RIF Overview</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">rr</td> <td property="rdfa:uri">http://www.w3.org/ns/r2rml#</td> <td property="dcterms:description">R2RML</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2012/REC-r2rml-20120927/">R2RML: RDB to RDF Mapping Language</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">sd</td> <td property="rdfa:uri">http://www.w3.org/ns/sparql-service-description#</td> <td property="dcterms:description">SPARQL 1.1 Service Description</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/sparql11-service-description/">SPARQL 1.1 Service Description</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">skos</td> <td property="rdfa:uri">http://www.w3.org/2004/02/skos/core#</td> <td property="dcterms:description">SKOS Core</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2009/REC-skos-reference-20090818/">SKOS Simple Knowledge Organization System Reference</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">skosxl</td> <td property="rdfa:uri">http://www.w3.org/2008/05/skos-xl#</td> <td property="dcterms:description">SKOS eXtension for Labels</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2009/REC-skos-reference-20090818/">SKOS Simple Knowledge Organization System Reference</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">ssn</td> <td property="rdfa:uri">http://www.w3.org/ns/ssn/</td> <td property="dcterms:description">Semantic Sensor Network Ontology</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2017/REC-vocab-ssn-20171019/">Semantic Sensor Network Ontology</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">sosa</td> <td property="rdfa:uri">http://www.w3.org/ns/sosa/</td> <td property="dcterms:description">Sensor, Observation, Sample, and Actuator Ontology</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2017/REC-vocab-ssn-20171019/">Semantic Sensor Network Ontology</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">time</td> <td property="rdfa:uri">http://www.w3.org/2006/time#</td> <td property="dcterms:description">Time Ontology</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2017/REC-owl-time-20171019/">Time Ontology in OWL</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">void</td> <td property="rdfa:uri">http://rdfs.org/ns/void#</td> <td property="dcterms:description">VoID</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/void/">Describing Linked Datasets with the VoID Vocabulary</a></td> <td>W3C Interest Group Note</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">wdr</td> <td property="rdfa:uri">http://www.w3.org/2007/05/powder#</td> <td property="dcterms:description">POWDER</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2009/REC-powder-formal-20090901/">Protocol for Web Description Resources (POWDER): Formal Semantics</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">wdrs</td> <td property="rdfa:uri">http://www.w3.org/2007/05/powder-s#</td> <td property="dcterms:description">POWDER-S</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2009/REC-powder-formal-20090901/">Protocol for Web Description Resources (POWDER): Formal Semantics</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">xhv</td> <td property="rdfa:uri">http://www.w3.org/1999/xhtml/vocab#</td> <td property="dcterms:description">RDFa Default Prefix</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/rdfa-core/">RDFa Core 1.1</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">xml</td> <td property="rdfa:uri">http://www.w3.org/XML/1998/namespace</td> <td property="dcterms:description">XML Reserved Prefix</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/REC-xml-names/">Namespaces in XML 1.0</a></td> <td>W3C Recommendation</td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">xsd</td> <td property="rdfa:uri">http://www.w3.org/2001/XMLSchema#</td> <td property="dcterms:description">XML Schema Datatypes</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/xmlschema-2/">XML Schema Part 2: Datatypes Second Edition</a></td> <td>W3C Recommendation</td> </tr> </tbody> </table> <p>Some vocabularies are currently in development at W3C and they <em>may</em> become W3C Recommendations or Notes, i.e., may become part of the table above. It is therefore advisable to consider their prefixes reserved for now. These are:</p> <dl> <dt>earl</dt> <dd>for “http://www.w3.org/ns/earl#”, see <a href="https://www.w3.org/TR/EARL10-Guide/">“Evaluation and Report Language (EARL) 1.0 Guide”</a></dd> </dl> <table style="margin-top: 10ex;" id="crawl"> <caption>Widely used Vocabulary prefixes based on the <a href="/2010/02/rdfa/profile/data/">vocabulary usage on the Semantic Web</a></caption> <thead> <tr> <th>Prefix</th> <th>URI</th> <th>Description</th> <th>For more details see</th> </tr> </thead> <tbody> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">cc</td> <td property="rdfa:uri">http://creativecommons.org/ns#</td> <td property="dcterms:description">ccREL</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/Submission/2008/SUBM-ccREL-20080501/">ccREL: The Creative Commons Rights Expression Language</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">ctag</td> <td property="rdfa:uri">http://commontag.org/ns#</td> <td property="dcterms:description">Common Tag Ontology</td> <td><a rel="rdfs:isDefinedBy" href="http://commontag.org/Specification">Common Tag Specification</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">dc</td> <td property="rdfa:uri">http://purl.org/dc/terms/</td> <td property="dcterms:description">Dublin Core Metadata Terms</td> <td><a rel="rdfs:isDefinedBy" href="http://dublincore.org/documents/dcmi-terms/#H2">DCMI Metadata Terms</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">dcterms</td> <td property="rdfa:uri">http://purl.org/dc/terms/</td> <td property="dcterms:description">Dublin Core Metadata Terms</td> <td><a rel="rdfs:isDefinedBy" href="http://dublincore.org/documents/dcmi-terms/#H2">DCMI Metadata Terms</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">dc11</td> <td property="rdfa:uri">http://purl.org/dc/elements/1.1/</td> <td property="dcterms:description">Dublin Core Metadata Element Set, Version 1.1</td> <td><a rel="rdfs:isDefinedBy" href="http://purl.org/dc/elements/1.1/">Dublin Core Metadata Element Set, Version 1.1</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">foaf</td> <td property="rdfa:uri">http://xmlns.com/foaf/0.1/</td> <td property="dcterms:description">FOAF</td> <td><a rel="rdfs:isDefinedBy" href="http://xmlns.com/foaf/spec/">FOAF Vocabulary Specification</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">gr</td> <td property="rdfa:uri">http://purl.org/goodrelations/v1#</td> <td property="dcterms:description">GoodRelations Ontology</td> <td><a rel="rdfs:isDefinedBy" href="http://www.heppnetz.de/ontologies/goodrelations/v1">GoodRelations Language Reference</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">ical</td> <td property="rdfa:uri">http://www.w3.org/2002/12/cal/icaltzd#</td> <td property="dcterms:description">iCalendar terms in RDF</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/2002/12/cal/icaltzd#">iCalendar terms in RDF</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">og</td> <td property="rdfa:uri">http://ogp.me/ns#</td> <td property="dcterms:description">Facebook's Open Graph protocol</td> <td><a rel="rdfs:isDefinedBy" href="http://ogp.me/">Open Graph Protocol</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">rev</td> <td property="rdfa:uri">http://purl.org/stuff/rev#</td> <td property="dcterms:description">RDF Review Vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="http://vocab.org/review/terms.html">RDF Review Vocabulary</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">sioc</td> <td property="rdfa:uri">http://rdfs.org/sioc/ns#</td> <td property="dcterms:description">SIOC Core Ontology</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/Submission/2007/SUBM-sioc-spec-20070612/">SIOC Core Ontology Specification</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">v</td> <td property="rdfa:uri">http://rdf.data-vocabulary.org/#</td> <td property="dcterms:description">Google Rich Snippets' Vocabularies</td> <td><a rel="rdfs:isDefinedBy" href="https://www.google.com/support/webmasters/bin/answer.py?answer=99170">Rich snippets (microdata, microformats, and RDFa)</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">vcard</td> <td property="rdfa:uri">http://www.w3.org/2006/vcard/ns#</td> <td property="dcterms:description">vCard in RDF</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/Submission/2010/SUBM-vcard-rdf-20100120/">Representing vCard Objects in RDF</a></td> </tr> <tr typeof="rdfa:PrefixMapping"> <td property="rdfa:prefix">schema</td> <td property="rdfa:uri">http://schema.org/</td> <td property="dcterms:description">The Schema.org vocabulary</td> <td><a rel="rdfs:isDefinedBy" href="http://schema.org/docs/full.html">Full Schema.org documentation</a></td> </tr> </tbody> </table> <h2>Vocabulary Terms</h2> <table> <caption>Terms defined by W3C Documents</caption> <thead> <tr> <th>Term</th> <th>URI</th> <th>Description</th> <th>For more details see</th> </tr> </thead> <tbody> <tr typeof="rdfa:TermMapping"> <td property="rdfa:term">describedby</td> <td property="rdfa:uri">http://www.w3.org/2007/05/powder-s#describedby</td> <td property="dcterms:description">Refers to resource providing a description.</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/2009/REC-powder-formal-20090901/#pp">POWDER: Formal Semantics, Section 5, POWDER Processor Semantics</a></td> </tr> <tr typeof="rdfa:TermMapping"> <td property="rdfa:term">license</td> <td property="rdfa:uri">http://www.w3.org/1999/xhtml/vocab#license</td>  <td property="dcterms:description">Refers to a license associated with this context.</td> <td><a rel="rdfs:isDefinedBy" href="http://www.iana.org/assignments/link-relations/link-relations.xml">IANA Link Relations</a></td> </tr> <tr typeof="rdfa:TermMapping"> <td property="rdfa:term">role</td> <td property="rdfa:uri">http://www.w3.org/1999/xhtml/vocab#role</td> <td property="dcterms:description" datatype="">indicates the purpose of the resource. See the <a href="https://www.w3.org/1999/xhtml/vocab#XHTMLRoleVocabulary">XHTML Role Vocabulary</a> for roles in this vocabulary space</td> <td><a rel="rdfs:isDefinedBy" href="https://www.w3.org/TR/xhtml-role">XHTML Role Attribute Module</a></td> </tr> </tbody> </table> <hr/> <address> <span rel="dcterms:creator"> <span about="http://www.ivan-herman.net/foaf#me" typeof="foaf:Person"> <span property="foaf:name" datatype=""><a href="https://www.w3.org/People/Ivan">Ivan Herman</a></span>, <a rel="foaf:mbox" href="mailto:ivan@w3.org">ivan@w3.org</a>, <a rel="foaf:workplaceHomepage" href="https://www.w3.org">W3C</a>, <span rel="rdfs:seeAlso" resource="http://www.ivan-herman.net/foaf" property="foaf:title">Digital Publishing Activity Lead</span>, </span> </span> Updated: <span property="dcterms:updated">2020-05-09</span> </address> <br/> </body> </html>

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RDFa Core Initial Context