About: http://webisa.webdatacommons.org/281508239

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	This does not quite address Kyle's claim, though, because including other systems results in different true-but-unprovable sentences.
http://www.w3.org/ns/prov#wasQuotedFrom	blogs.com