About: http://webisa.webdatacommons.org/377630266

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	Toward this end, the light pipe may be formed of a transparent material such as glass or polycarbonate and the exit surface ground to provide the desired degree of diffusion.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr