About: http://webisa.webdatacommons.org/402603917

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 either case, the valid mask is advantageously used during processing to determine whether results should be kept or ignored.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com