About: http://webisa.webdatacommons.org/363725951

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	Facebook is a leader in social semantic because, with the open graph protocol, they???ve gotten people to add RDFa metadata to millions of web pages.
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net