About: http://webisa.webdatacommons.org/17994438

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	To quote from the IETF proposal for codifying it, SIP is a protocol for initiating interactive communication sessions between users.
http://www.w3.org/ns/prov#wasQuotedFrom	wifinetnews.com