About: http://webisa.webdatacommons.org/138134904

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 second switch half 20 comprises a rigid back plate 22 of suitable material, such as polyester, having a thickness of approximately 1 to 2 millimeters to provide the desired rigidity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com