About: http://webisa.webdatacommons.org/5773091

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 contrast, optical elements such as lenses modify light rays on the basis of refraction.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com