About: http://webisa.webdatacommons.org/220133261

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	Graphite or carbon black, such as acetylene black, or mixtures of the materials, is used as the electrically conductive material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com