About: http://webisa.webdatacommons.org/86928833

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	Heretofore, there have been various arrangements for holding an optical element such as a lens or a reflection mirror.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com