About: http://webisa.webdatacommons.org/395926304

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	This test, of whether the signal is data or digitized voice, is repeated periodically, say once every minute.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com