About: http://webisa.webdatacommons.org/31250732

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	I am thinking the problem is perhaps, the library files are an incorrect version or something.
http://www.w3.org/ns/prov#wasQuotedFrom	cplusplus.com