About: http://webisa.webdatacommons.org/335500211

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	A signal-of-opportunity interacts with an urban or other tracking environment, coupling to and being perturbed by scatterers including buildings, electric lines, soil or ground, and other conducting objects.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com