About: http://webisa.webdatacommons.org/405632354

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	While in one preferred embodiment, the preferred signals encompass voltages, not only could the unit vary (so currents, powers, or other elements might be measured), but also any variety of signals might be sensed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com