About: http://webisa.webdatacommons.org/436485430

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 lens part 1 can be made of a hard substance, for example, a conventional lens material such as PMMA, a hydrogel or silicon or a similar material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com