About: http://webisa.webdatacommons.org/361166449

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	lets Alice determine that a message came from Bob, if Alice and Bob share some sort of secret.
http://www.w3.org/ns/prov#wasQuotedFrom	w3.org