About: http://webisa.webdatacommons.org/50104324

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 source of light 18 having a high degree of coherence, such as a laser, produces a relatively narrow beam of light 20 for receipt at the splitter port 161.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com