About: http://webisa.webdatacommons.org/66398026

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	Such can be in form of the conference server receiving an invite that indicates joining a session, wherein on one side is the conferencing server and on the other side the conference unaware device, such as the mobile phone.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com