About: http://webisa.webdatacommons.org/59851798

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 valve may be magnetically activated by signals from a remote device, or it may be activated by other types of signals such as, for example, low-power microwave signals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk