About: http://webisa.webdatacommons.org/165230432

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	It should also be noted that this operation, i.e. addition or subtraction of a magnitude, can be carried out with simple analog or digital sum or subtract circuit.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com