About: http://webisa.webdatacommons.org/310722204

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	The non-zero test is often defaulted for predicates and other functions or expressions which meet the following restrictions: Returns 0 for false, nothing else.
http://www.w3.org/ns/prov#wasQuotedFrom	cmu.edu