About: http://webisa.webdatacommons.org/105972408

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 receive the multicast session or channel, the end device may send an IGMP join message to a CMTS or other server asking to join the multicast group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com