Because RDF (Resource Description Framework) [W3C 1999] is hailed by the W3C as a Semantic Web language, some people seem to have the view that if an application uses RDF, then it is a Semantic Web application. This is reminiscent of the “If it is programmed in Lisp or Prolog, then it must be AI” sentiment that was sometimes evident in the early days of Artificial Intelligence. There is also confusion about what constitutes a legitimate Semantic Web application.