About: http://webisa.webdatacommons.org/180236362

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	Examples of properties it can collect can include conversation identifiers, subject strings, and other properties that could uniquely identify a particular item or document, such as a Uniform Resource Locator (???URL???).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com