About: http://webisa.webdatacommons.org/120933563

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 area including an outer circumference of the entrance, the inclined surface being inclined with respect to an optical axis of the incident light beam.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com