About: http://webisa.webdatacommons.org/166230198

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	The points noted in Bob's answer are all valid, so I will not bother repeating them; however, I thought a little additional information might also be helpful for some, as your question is a valid concern.
http://www.w3.org/ns/prov#wasQuotedFrom	superuser.com