About: http://webisa.webdatacommons.org/31985198

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Nelson LaQuet points out that instanceof can be used to test if the object is an instance of a class that implements an interface.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com