Description RDFa is a specification for attributes to express structured data in XHTML. The rendered, hypertext content of XHTML is reused by the RDFa markup, so that publishers don't need to repeat significant data in the document
From Semantic Web Standards
A list of all pages that have property "Description" with value "RDFa is a specification for attributes to express structured data in XHTML. The rendered, hypertext content of XHTML is reused by the RDFa markup, so that publishers don't need to repeat significant data in the document"
