About: http://webisa.webdatacommons.org/232113449

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	Loosely speaking, a system is an object in which different kinds of signals interact and produce an observable output signal.
http://www.w3.org/ns/prov#wasQuotedFrom	wolfram.com