About: http://webisa.webdatacommons.org/394364105

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	In a typical optics for projecting an image, the light beam outputted from an optical element such as a lens has the following relationship;
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca