About: http://webisa.webdatacommons.org/362017928

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	When contact surfaces are exposed to dust, smoke, gases, soot, and other solids suspended in the atmosphere, nonmetallic films form, inhibiting conductivity.
http://www.w3.org/ns/prov#wasQuotedFrom	musicdirect.com