About: http://webisa.webdatacommons.org/367379224

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	Various systems exist for monitoring the exposure of an audience member to media broadcasts, such as radio and television.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca