About: http://webisa.webdatacommons.org/447737453

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	Optical element or light-transition means 60 is of optically clear material, and may be of such material as optical grade acrylic or glass material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com