About: http://webisa.webdatacommons.org/431585322

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	Note that union is probably not the best term for A+B here--he is specifically a disjoint union of the two types, because the two sides are distinguished even if their types are the same.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com