About: http://webisa.webdatacommons.org/440423409

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	That is, preferably integrated into the covering body is an optic that serves to bend, refract or wavelength-convert the electromagnetic radiation exiting from the light exit opening of the reflective optic.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com