About: http://webisa.webdatacommons.org/170434052

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	This is, in fact, one of the things that should help distinguishing null
http://www.w3.org/ns/prov#wasQuotedFrom	digitalmars.com