rdf:type

rdf:type is an instance of rdf:Property that is used to state that a resource is an instance of a class.

A triple of the form:

R rdf:type C

states that C is an instance of rdfs:Class and R is an instance of C.

The rdfs:domain of rdf:type is rdfs:Resource. The rdfs:range of rdf:type is rdfs:Class.