About: http://webisa.webdatacommons.org/89013965

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	Alternatively, in the case computing environment 500 is a computer or server or the like, power source 590 may be a power supply designed to connect to an alternating current (???AC???) source, such as via a wall outlet.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com