About: http://webisa.webdatacommons.org/158009529

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	In the first method, the filling material is a liquid solution of a high-index optical material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es