About: http://webisa.webdatacommons.org/82459045

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	Your question is an interesting one & although I can not provide a definite answer & probably no one else can as well, I can state this for a fact.
http://www.w3.org/ns/prov#wasQuotedFrom	medhelp.org