About: http://webisa.webdatacommons.org/382563291

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	An optical element, such as a lens or filter, may be positioned over the aperture.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com