About: http://webisa.webdatacommons.org/271928811

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	The lenses can be made of glass, silicone or other similar transparent or partially transparent materials retaining their form at elevated temperatures.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com