About: http://webisa.webdatacommons.org/200235765

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 process variable used herein refers to a variable such as pressure, temperature, flow, level, specific gravity, etc., sensed by a transmitter or other sensor such as a process control or aerospace instrument.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com