About: http://webisa.webdatacommons.org/375347163

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 voltage source may include such circuits as dc voltage multipliers or the like, although, the exact nature of the voltage source is not crucial to the invention herein involved, and may even be external to the circuit itself.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com