About: http://webisa.webdatacommons.org/219539600

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 do not see them saying they have no value, only that the viewer should be able to choose whether to watch them or not.
http://www.w3.org/ns/prov#wasQuotedFrom	dbstalk.com