About: http://webisa.webdatacommons.org/394788221

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	Set operations such as union, intersection and complement are investigated ...
http://www.w3.org/ns/prov#wasQuotedFrom	brainmass.com