About: http://webisa.webdatacommons.org/63390322

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	Were it not for r'', they would have to be escaped twice, i.e. quadrupled, in order to satisfy both Python interpreter and regexp engine:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com