About: http://webisa.webdatacommons.org/37026396

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	Electrodes 20, 21, 22 and 23 and 40, 41, 42 and 43 are preferably formed of platinum, although other metals and metal alloys may be employed such as stainless steel or gold.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com