About: http://webisa.webdatacommons.org/159744486

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 one leads to all kinds of interesting questions, all of which point to the 1st Amendment issues that you mention.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com