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<h2>Metadata Working Group Keywords schema</h2>
<p>The Metadata Working Group's schema for hierarchical keywords metadata.
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<li>Exiv2 keys are nested in the form <b><code>Xmp.mwg-kw.Keywords/mwg-kw:Hierarchy/mwg-kw:<Property></code></b></li>
<li>The schema namespace URI is <b><code>http://www.metadataworkinggroup.com/schemas/keywords/</code></b></li>
<li>The preferred schema namespace prefix is <b><code>mwg-kw</code></b></li>
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Reference: <a href="http://www.metadataworkinggroup.org/pdf/mwg_guidance.pdf" title="Guidelines for Handling Image Metadata">Guidelines for Handling Image Metadata</a></p>
<p>Click on a column header to sort the table.</p>
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