About: http://webisa.webdatacommons.org/108868655

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	Additionally, optical component such as gratings, dichroic filters, focalizers, gradient lenses, and off-axis reflectors may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com