About: http://webisa.webdatacommons.org/196980942

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	Return Null If A Value Is A Certain Value You need to return NULL only if the value of your data is a certain value.
http://www.w3.org/ns/prov#wasQuotedFrom	sqlblog.com