About: http://webisa.webdatacommons.org/176713988

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	Google+ Sign-In extends the Google+ social network into third-party websites, desktop applications and mobile apps, and further cements Google's position as an identity provider alongside others such as Twitter and Facebook.
http://www.w3.org/ns/prov#wasQuotedFrom	infoq.com