About: http://webisa.webdatacommons.org/366125437

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	As is known in the art, SIP is a standard protocol for initiating interactive user sessions involving multimedia elements such as VoIP.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com