About: http://webisa.webdatacommons.org/318823941

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	Suitable wireless signals may include, for example, radio frequency signals, infrared signals, optical signals, or and other suitable wireless signal as known in the art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com