About: http://webisa.webdatacommons.org/175714105

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	UPS systems are now widely used to provide a secure supply of power to critical loads such as computers, so that if the line voltage varies or is interrupted, power to the load is maintained at an adequate level and is not lost.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com