About: http://webisa.webdatacommons.org/194847231

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	Control electrodes 18(1) and 18(2) are each made of a conductive material, such as aluminum, although other types of materials can be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com