SubjectPredicateObject
http://bio2rdf.org/cas:216503-57-0 http://bio2rdf.org/bio2rdf_resource:url http://bio2rdf.org/html/cas:216503-57-0 http://bio2rdf.org/html/cas:216503-57-0 (Non-RDF URI)
http://www.w3.org/2002/07/owl#sameAs http://cas.bio2rdf.org/cas:216503-57-0 (External link)