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<!DOCTYPE html><html><head><meta name="viewport" content="width=device-width"/><meta charSet="utf-8"/><title>Wikidata</title><script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script><script id="MathJax-script" async="" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script><script type="text/x-mathjax-config">
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</script><meta name="next-head-count" content="6"/><link rel="preload" href="/wiki/_next/static/css/52fc2ba29703df73922c.css" as="style"/><link rel="stylesheet" href="/wiki/_next/static/css/52fc2ba29703df73922c.css" data-n-g=""/><noscript data-n-css=""></noscript><link rel="preload" href="/wiki/_next/static/chunks/main-ae4733327bd95c4ac325.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/webpack-50bee04d1dc61f8adf5b.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/framework.9d524150d48315f49e80.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/commons.0e1c3f9aa780c2dfe9f0.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/pages/_app-8e3d0c58a60ec788aa69.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/940643274e605e7596ecea1f2ff8d83317a3fb76.4841a16762f602a59f00.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/pages/%5B%5B...slug%5D%5D-1aa198f87ede1cd0e1dc.js" as="script"/></head><body><div id="__next"><main><h1>Wikidata</h1><section class="post-metadata"><span>Date: <!-- -->2021-05-20 21:14:34 +08:00</span><span>Date modified: <!-- -->2021-05-20 21:15:24 +08:00</span></section><nav class="toc"><ol class="toc-level toc-level-1"></ol></nav><ul><li><p>A universal database with semi-structured data allowing for natural queries.
</p></li><li><p>Each item in the database contains statements which in turn contain properties.
</p></li><li><p>Querying tools are available (e.g., <a href="https://query.wikidata.org/">https://query.wikidata.org/</a>, wikibase-cli).
</p></li><li><p>item + statement + property
</p></li><li><p>The item itself and its part are assigned a unique ID — e.g., the item &quot;GNU Guix&quot; is assigned to &quot;Q18968627&quot; and it has a logo image statement is which assigned at &quot;P154&quot;.
</p></li><li><p>Wikidata-related SDKs and APIs are available for interacting with the data without using the website.
</p></li><li><p><a href="https://www.wikidata.org/wiki/Special:ApiSandbox">API sandbox</a></p></li></ul></main></div><script id="__NEXT_DATA__" type="application/json">{"props":{"pageProps":{"metadata":{"date":"\"2021-05-20 21:14:34 +08:00\"","date_modified":"\"2021-05-20 21:15:24 +08:00\"","language":"en","source":""},"title":"Wikidata","hast":{"type":"root","children":[{"type":"element","tagName":"nav","properties":{"className":"toc"},"children":[{"type":"element","tagName":"ol","properties":{"className":"toc-level toc-level-1"},"children":[]}]},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"A universal database with semi-structured data allowing for natural queries.\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Each item in the database contains statements which in turn contain properties.\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Querying tools are available (e.g., "},{"type":"element","tagName":"a","properties":{"href":"https://query.wikidata.org/"},"children":[{"type":"text","value":"https://query.wikidata.org/"}]},{"type":"text","value":", wikibase-cli).\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"item + statement + property\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The item itself and its part are assigned a unique ID — e.g., the item \"GNU Guix\" is assigned to \"Q18968627\" and it has a logo image statement is which assigned at \"P154\".\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Wikidata-related SDKs and APIs are available for interacting with the data without using the website.\n"}]}]},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"element","tagName":"a","properties":{"href":"https://www.wikidata.org/wiki/Special:ApiSandbox"},"children":[{"type":"text","value":"API sandbox"}]}]}]}]}]},"backlinks":[]},"__N_SSG":true},"page":"/[[...slug]]","query":{"slug":["data.wikidata"]},"buildId":"Ie9t5zutrXP6Of75Cb5xF","assetPrefix":"/wiki","nextExport":false,"isFallback":false,"gsp":true}</script><script nomodule="" src="/wiki/_next/static/chunks/polyfills-99d808df29361cf7ffb1.js"></script><script src="/wiki/_next/static/chunks/main-ae4733327bd95c4ac325.js" async=""></script><script src="/wiki/_next/static/chunks/webpack-50bee04d1dc61f8adf5b.js" async=""></script><script src="/wiki/_next/static/chunks/framework.9d524150d48315f49e80.js" async=""></script><script src="/wiki/_next/static/chunks/commons.0e1c3f9aa780c2dfe9f0.js" async=""></script><script src="/wiki/_next/static/chunks/pages/_app-8e3d0c58a60ec788aa69.js" async=""></script><script src="/wiki/_next/static/chunks/940643274e605e7596ecea1f2ff8d83317a3fb76.4841a16762f602a59f00.js" async=""></script><script src="/wiki/_next/static/chunks/pages/%5B%5B...slug%5D%5D-1aa198f87ede1cd0e1dc.js" async=""></script><script src="/wiki/_next/static/Ie9t5zutrXP6Of75Cb5xF/_buildManifest.js" async=""></script><script src="/wiki/_next/static/Ie9t5zutrXP6Of75Cb5xF/_ssgManifest.js" async=""></script></body></html>