About: http://webisa.webdatacommons.org/180095068

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	But with that being said you raise an interesting point about many websites allowing users to post messages to other readers, including sites such as the www.bbc.co.uk.
http://www.w3.org/ns/prov#wasQuotedFrom	venganza.org