subPropertyOf

http://www.w3.org/2000/01/rdf-schema#subPropertyOf
http://www.w3.org/1999/02/22-rdf-syntax-ns#Property
The subject is a subproperty of a property.
http://www.w3.org/1999/02/22-rdf-syntax-ns#Property
http://www.w3.org/2000/01/rdf-schema#
subPropertyOf
http://www.w3.org/1999/02/22-rdf-syntax-ns#Property