About: http://webisa.webdatacommons.org/239028388

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	and OpenID authentication providers, which let users log in using external sites such as Facebook, Twitter, and Windows Live.
http://www.w3.org/ns/prov#wasQuotedFrom	microsoft.com