About: http://webisa.webdatacommons.org/97976683

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	Also, it is normally desirable to have the light source impinging basically at an angle normal to the surface of the body, however, angles other than right angles may be used in order to produce additional optical effects.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com