About: http://webisa.webdatacommons.org/140328022

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	In some implementations, aside from a thin film of liquid crystal molecules, the switch may contain no moving parts, other than photons and electrons.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com