About: http://webisa.webdatacommons.org/241033754

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	Further, an oxide of e.g. silicon, tin, zinc, manganese, iron or nickel, or lead sulfate, may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com