About: http://webisa.webdatacommons.org/151925097

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 FIG. 6, reference numeral 26 is a screen, 27 is a mirror, 30 is a housing, 29 is a CRT projector, and 28 is a lens.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com