About: http://webisa.webdatacommons.org/426375537

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 screen 11 can also be any other projecting optical element, e.g. a lens, as shown in the Figure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com