About: http://webisa.webdatacommons.org/38837987

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	The term signal is herein intended to include electrical signals, acoustic signals, illumination signals, and other known signals which may be sensed as with a transducer and which may be processed such as with a filter.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca