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RDFa

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What is RDFa?

RDFa stands for Resource Description Framework and is a W3C Recommendation that adds a set of extensions to HTML, XHTML and various XML-based document types for embedding rich metadata within online documents. The RDF data-model mapping enables its use for embedding RDF subject-predicate-object expressions within XHTML documents. It also enables the extraction of RDF model triples by compliant user agents.