About: http://webisa.webdatacommons.org/118080463

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 optical shield 12 is a transparent enclosure made of fused silica, glass, or sapphire or other optically transparent material capable of withstanding heat, steam and high laser power.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com