About: http://webisa.webdatacommons.org/181431213

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	A reflector such as a mirror or prism mounted on the slider above the objective lens can also be provided for guiding a laser beam into the objective lens on the slider.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com