About: http://webisa.webdatacommons.org/211374738

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	These properties are particularly useful, for example, in the production of thin, lightweight, photochromic eyeglass or sunglass lenses or similar high strength articles for optical applications.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au