RDF Property Elements

Inside the <rdf:Description> element, you store the actual elements that describe the subject. In the current example, the predicate is the Creator property, which specifies the document's author, and the object is the name of the author, Nicolas Copernicus:

<?xml version="1.0" ?> 
<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
    <rdf:Description about="http://www.starpowder.com/planets.html">
        <Creator>Nicolas Copernicus</Creator>
    </rdf:Description>
</rdf:RDF>

The Creator property is not built into the RDF specification—in fact, no properties are. It's up to you to create the named properties you want to use to describe a resource. In fact, a number of property sets, called RDF content description models, ...

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