About: http://webisa.webdatacommons.org/242719175

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	In SQL, a UNION is an operation that combines the results of two subselects, and is often used to merge lists of values obtained from several tables.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com