About: http://webisa.webdatacommons.org/19433009

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	You can use this option when your clients are authenticated by using non-Windows authentication such as client certificates, which supports mapping to Windows accounts, or when you want to impersonate a service account.
http://www.w3.org/ns/prov#wasQuotedFrom	codeplex.com