This is a specification of a precise semantics, and corresponding complete systems of inference rules, for the Resource Description Framework (RDF) and RDF Schema (RDFS).
RDF Translator is a multi-format conversion tool for structured markup. It provides translations between data formats ranging from RDF/XML to RDFa or Microdata. The service allows for conversions triggered either by URI or by direct text input. Furthermore it comes with a straightforward REST API for developers.
C. Bizer, E. Pietriga, D. Karger, und R. Lee. Proc. of 5th International Semantic Web Conference, Athens, GA, USA, November 5-9, 2006, LNCS 4273, (2006)