About: http://webisa.webdatacommons.org/341053450

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	Switch means, for example in the form of a rotary electrical switch 56, provides for selective connection of the source 55 to the various electrodes in the chamber members 11 and 12.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk