About: http://webisa.webdatacommons.org/44490213

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	I know your post is a little old so maybe you already got it to work, but if not hope this works for you, lemme know if not.
http://www.w3.org/ns/prov#wasQuotedFrom	virtualbox.org