About: http://webisa.webdatacommons.org/205531585

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	Reference numeral 10 denotes an optical element having a plurality of curved reflecting surfaces (back reflecting mirrors) and is formed of a transparent material such as glass or plastic.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com