About: http://webisa.webdatacommons.org/134387556

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	Yammer: In 2008, we were all enamored with Twitter, but frustrated by the service not having key features, such as groups and private tweets.
http://www.w3.org/ns/prov#wasQuotedFrom	techcrunch.com