<http://webisa.webdatacommons.org/prov/429550350> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/101021928> . <http://webisa.webdatacommons.org/101021928> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/101021928> <http://www.w3.org/ns/prov#value> "The gear is offered by companies such as Polycom, Cisco Systems, Tandberg, Lifesize Communications and others." . <http://webisa.webdatacommons.org/101021928> <http://www.w3.org/ns/prov#wasQuotedFrom> <blogspot.ca> .