About: http://webisa.webdatacommons.org/442645795

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	problems, and other tools like Twisted were the ones with performance
http://www.w3.org/ns/prov#wasQuotedFrom	twistedmatrix.com