CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "id.loc.gov",cType: 'non-interactive',cRay: '8e82150ebd3d5f8a',cH: '3knlSpsr_zEaysLqJQHkZz11uu2A3uRLprtzkhzCRXc-1732542358-1.2.1.1-uDUSm4hnrlyhEu.z8rACgzli.LaAX4sAyzo09CMXYV3p90cPx3ExBdKxxMc_ts_A',cUPMDTk: "\/vocabulary\/graphicMaterials\/tgm002896.html?__cf_chl_tk=688neG5QEAwlASrGIzN8fS5RheODqT3JNJm1kk5o6nY-1732542358-1.0.1.1-MpnKnJvZQi2CpuKww4fHdH87mrFS0MPZjXqp2v11UqY",cFPWv: 'g',cITimeS: '1732542358',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/vocabulary\/graphicMaterials\/tgm002896.html?__cf_chl_f_tk=688neG5QEAwlASrGIzN8fS5RheODqT3JNJm1kk5o6nY-1732542358-1.0.1.1-MpnKnJvZQi2CpuKww4fHdH87mrFS0MPZjXqp2v11UqY",md: "TcHqH.SOqWkyUslEV9dW7jnqSNbp9tkaz8TQGcxjsJQ-1732542358-1.2.1.1-qPIebGQDN259STtW97SR1oUBy.QDi9TmMtw1Mb4XGXxsr7RI.zfgnq2oh0VoZhkROOkfAMl9MwmElTRWkojIlnRk7Fzef2yhELr7DJJDiCzHwY1uQzVZwa5JNpuGeq.1KfBqM84GKWqsy_p7ECaEyObTtf6Ao4dRA1evKLkxIU1H0hLsRLatD6QuQz7FgdsRKhO1S6aIxsy6WCZ0gvLLiG95RbWahDwanZJx5vowpRtLGWByLptWirvMjJ3ISP5iAiS.8IfQRXSM5pdvI_2X1eapb9V._pqlx2d0Neerm8ALyXFQ2Pax34LPlBmUx5oCsNVk0XDRJ0GbAk5CzTpwFFTPLmX1FQ1lXI9GQ7gNsOaD10nfCWzDEYmtztxMcZ88H0strKHo3ASyiSgVCx4GYOwLVShTZBIRP3SyQm1ejlqWIuIEoZnbJs0GrjmowAkTeIkzPUdCFeBZvS5Pzcb_pe9hmxjbywKtognnFJWOBZ6fXG3fsQxZJQ3sYab1aNVXtdtjtA7Bwre2B.BJAhkYV51lWWqaOysihZjdXdzgJn5dWxQpBTX60ZRDAIpzoID8.ID.EyvjdH.uM5smZqYL4YuxiG55o66ugWQcwgZdhdBEKsummoQpzK0K5yAPHwbyd7Zr_3KspmanlyPR2aZbWK.5ceVsADQciPZQXqJSoblEsxXDJ2ds4UQQdQf4v1W5e_oNGKFctVnKpfVfFsb.cbaisOrEqviX1.0q3rN4VnOjt4Lp4CDwzcGXRdfv8CJROZx7BRnw5MdZsxxrge8XH9Nnsx2daTDaUuFIUT.TNod0BdQ3cWFHOr5iFejkgzrR14ZsPLpetq92cZfOFBY9YDqaCPWuxyVLt1OkNcIYht3HK5JnU8bPMXAXWEJI6iMr9TvxOHUkK_sWnbXmt2h7MgOo05ySM0BZf6QAp8FBNiaFDgs1H8jfogg6eoRu7tmq9x4BXCrReTneOSH4fpxdYOHvirRlyU8a6.FbNftc2Z6YsswxKSA.J94NezT3IgUMSqRL379g5Ghd764Sn9n7h9be1Z7bg1G303ObXuBbRheZMEXM.X4tZAMzvVT6V2iJYvJRcOSiQRAHzDTGW5cdZpltYSItGatP8OUr5bNT2Dsbkf8vhNA4zEmCgoLszVYN2xs1DZbTSS4xmyVX45L7KqA37vZmCXM3Uz6NkhY3yRWhQc4tZCUEcxD15yVHMV9TXHt_LuDAFuH4_zHzc5ysv8w5gjMTJpPbElD_eZildyz9U_MhXsgPCG811_T9xAzbiw0JA4LeggWF_yFc8PvEoQseIb2iuMfegPCi5hzCYCXGqR2JehjxfOPFRycOGjsnfhge6e03Vuts9ly8OdsTlkL0QBmDd46gtUKkqLBQ6.zwRJ4ISJLscj3lyRaIsJ4MjG6pWEvxwJNsPVCSfHyqbkYQdn2I.GH9Xxglg.Jxz_lhZlIGQnNBmXBRfVt2L8PJv99Av_boBLK0OIsvU62lAgh1VRrX.4dCsqyChYvzET3Y7MRUC4U0W0f2p5MKA4Eo7nDMBKmCm7zCjIzYp721vyhyAHQLAH6rBXmASkWQ6GWvcsJGnNstGbGMYYVw53qyit4uxYXrLROtl9ZtRMuZKJuhANaKGESaiHvsO7e0wgrkhlou1F_nVuGPYw_hBRaNWv5INbkNpuubZ1CVCDml3q5LQB0iWn45hdY8GlztLgVfP79UTO_66KcRWIZmD84DzmJFseh5v6Sh8YCeX8G02bQ_kuVui8VzR49MJ3znjYSscA8KPjeJRJ2hlnC8GSyCpF2KoEYY4lP4BisZ1O8rGkz2LVrtz8K6qNNzKBJ6orYtpw923p61.RtdGRzbKw9RkJbj2wlW2iwq63_JOEH7gycjH.CtSawn3ICkiuKFsE2dCc0jY7Refb4np8SCsqnIPrD0JL412eHLdcay0ImwH5G6TzLfhFIzuOSYcuOCARMnbRvzv1blTIENas6cfXdNmyjQAm_h9Ls3R963kmaPQdQ.P.ydiS359eZJPBT_Ios",mdrd: "Jwor.Bx3NFEtDvOon3Wfgs7D65M6n0TyoODgp2mDf_Q-1732542358-1.2.1.1-JNA4fkTyDpwpC_DY6DfIXo5WgNMZBmT8oQDtfNK1uGKDkCCyTQjD84x.6LoKRqrAh8Pptw_JUUO99RnnNh9FgZX6WvJN7hgwyNlfFbQVw7.nIgZojw2CoyRIbHxVV54Pq6D5KUQfEEwm8hHYqlvd6Lt1DdQbkWhRgnCX1ac.6YeabRbk2NwiaQT1nz7_XJQ4uzYuN5AG.Whax5Of6OD46fbuwjKHwdr.QF42IzESsOc1NIUMKnfVcwgdQCX6mPMOfDeSpUbtCtkmg78ypkdBWhTspl4heGKFsGwLhTp.vxW1CT6Rq2Lz_BroO3dtTaOFJm2ZNKTNS7WfmJQ_TrLZ0t9pFXJRHqoQPNttOIjh8CSeNedOhApRusHfX2iJ9S.rqjB4xMAgwb74uunkhnE6mdWUPilmrMpdfRKJdpQh3eBGHlAmA71rIzknME9ifklzC.F8p4bQlTV_pbZ7T.eZe_Rz53CEUfOGvBPWePNAUi2ntNg00Aw.KBfAMTD9aDrkA7lCB6r9xHaWol.9pVn8j09mP6ZuDjzTsQx8vDV3S8bK1I3YwSCVhhxbaoQN06q79JCCOyuRnN36CmsvMJNwqF3Q1Cq.KKnkWkSdJ6TyL8wcFdo5OQ7Yka2rbsxgCzZ24b63z_1khR4F1AYnGQbZd4Dqc3s7lpAGTVS_L0t4noQfJtPOmBZwxr5MyeXeazPssyepv7KWKQKuFOqpb1U0TDefJiEZp3DKUO10plZsYUPWLOWmPcmCgpmWjwsEjcJFaqnZWv8WJkXL6XwjVCzq5IU4B.mnGN7WF0Mhr0PjMAnn7O3bOgE9k1YmE9TrzLWo0c_.cDP99W7Ut6HYOIEo3ULlyAfvssZeFa8MWRhWAabbVj8T1c6TKH.vZycfIZmrCozL1RpEE8r.ENwk22nzi3_u6Aq2xpP7jopZIKroVDSKUL_QU4c0HNrsCszUkrkhMe6wf4iqCMXsSi5.rclE2Mr2B0fqp6fYIJ4i3j3w7qEsLd_kwL0YBn5yKs1wK5.zLNaO1Q1OgNOMwWKs3uX5B5w1kWO6WSv5wqR22KODX1gwi4_cQkXgX9sfwiFsu3Yz3jlfDnndiAtQDqA100igtYeC4w_Nb1B6fy.mdjU8jgyMSmc5jyXBsOvMRs1GV1oyVn5apn2gvH5u9z9JcFN7P1inuF6we6ug2xvBid9dPJGjgni4f5griPUHC1IjNf3JEBYMp0aQnHYiSl0c0dXHBla2HuUxMatOzLdzUYSL9ikzHv9IDe8AjqaS1HQOiaKo0n3hm3YdtmXfELoH9iH1hjaHPD8rlwImEhMqRucud5MquMZF9INms_zkNUl4ZP7hcCUxsYHLA0jn9Psn95CEjF8SWTx2LxNv_BNiV_Ob0CEVSU.MEiKfpT7QCYVnhDLP3PcaMzBc9hf6HyyXBOZjtFDRgMLOCRykUvHI9ayKIPJlseYE.TkE3WQlX9D03ki8uXlpYr0nMTyuxP33FWiWK41GVK6YF7MJbq_seRaYsBfjcH.W0Ph15_Weyjfpiig4LH1dqprV7QyyYZLDiHiXqj8F4eBU77bgG1hmYIKC9eMtG8oKk7jT81x7jcRszszWoPpidmwcqsB5xXuCqutLfd_TJdAHDq8jr6eHsNvVv48NcH54TiQgVj6nuFfOBHqol2nXGy9nmOPl6miZt8_MbN.xnENjPrVCMXCJh3BGjlsLUCtKzgy73x0SsDdz2o2aDKh43uB9kPZ32hTth6enQEssA3WhZ6xNICuXWjpE.M2H2QYhMozgiF3pZtl2AUsiDx4JEKxI_X41WWOitefWo9cWIIdGWp.EcpVaTpMKNLIVUwcp99ra3PUzXaGa9EPnts7QVN.13MzMW4G1HSLz2QqiuEMbjvjhZ1mYOgqlGD5y6xgQj_J19CmnRd3HXaNFFUfkVEHgTv70ZQnZukUNLfIWcciLgGREBtQOv2K9WdY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=8e82150ebd3d5f8a';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/vocabulary\/graphicMaterials\/tgm002896.html?__cf_chl_rt_tk=688neG5QEAwlASrGIzN8fS5RheODqT3JNJm1kk5o6nY-1732542358-1.0.1.1-MpnKnJvZQi2CpuKww4fHdH87mrFS0MPZjXqp2v11UqY" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>