Subject	Predicate	Object	Graph
foaf:isPrimaryTopicOf http://xmlns.com/foaf/0.1/isPrimaryTopicOf	rdfs:comment http://www.w3.org/2000/01/rdf-schema#comment	A document that this thing is the primary topic of. http://www.w3.org/2001/XMLSchema#string	http://xmlns.com/foaf/0.1/ http://xmlns.com/foaf/0.1/