About: http://webisa.webdatacommons.org/31469799

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	Or do you mean the systems used to share the information such as a physical wall or wiki?
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com