About: http://webisa.webdatacommons.org/173172355

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	// term should be the same as expression except operation to avoid left-recursion
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com