About: http://webisa.webdatacommons.org/89404174

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	Optionally, the device can also contain an optical system, such as a mirror and/or lens system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca