About: http://webisa.webdatacommons.org/43008071

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	As shown therein, light from a source of coherent light, such as a laser, is divided by means of a beamsplitter B1.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com