About: http://webisa.webdatacommons.org/137132070

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	And, could I say He knew that my mother was a nurse. , when I want to say He knew that my mother had been a nurse. ?
http://www.w3.org/ns/prov#wasQuotedFrom	usingenglish.com