About: http://webisa.webdatacommons.org/14344473

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 aperture 60 is preferably covered by a transparent material, such as plastic, that allows light to pass into the control unit casing 55.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com