About: http://webisa.webdatacommons.org/123213255

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	As inorganic substances, glass, quartz, oxides such as tin oxide, indium oxide, lead oxide, aluminum oxide, and lithium oxide, fluorides such as lithium fluoride, calcium fluoride, and magnesium fluoride, and the like may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com