About: http://webisa.webdatacommons.org/104589149

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	Each of the control electrodes 22(1) and 22(2) is made of a conductive material, such as chrome, although another material or materials could be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com