rdf
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RDFa Primer
We begin the introduction to RDFa by using a subset of all the possibilities called RDFa Lite 1.1 [ RDFA-LITE ]. The goal, when defining that subset, was to define a set of possibilities that can be applied to most simple to moderate structured data markup tasks, without burdening the authors with additional complexities. Many Web authors will not need to use more than this minimal subset.
Articles: Semantics, HTML, XHTML, and Structure Introduction Good HTML structure is based on logic, order, and using semantically correct markup. If you have a heading use the heading element, beginning with the H1 element. If you have a paragraph, use a paragraph element.
Semantics, HTML, XHTML, and Structure - Semantics - Articles - B