About: http://webisa.webdatacommons.org/5868879

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	In FIG. 32(B), a reflecting mirror 355 is used in place of the prison 306 so that it is not necessary to give a correction such as is needed for the case of using the prism.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk