About: http://webisa.webdatacommons.org/200477336

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	When the shutter 18 is open, a scene or other image in the outside world passes through the concave half-mirror 3 and is combined with the image displayed on the two-dimensional image display device 6 for observation.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com