About: http://webisa.webdatacommons.org/89264304

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	If the material or segment to be recorded is a lecture, or a speech, etc., the signal source 10 is a simple video camera and/or microphone-amplifier unit.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com