About: http://webisa.webdatacommons.org/297154530

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 signals are typically transmitted by electrical, optical, radio or other means to devices which record the signals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com