About: http://webisa.webdatacommons.org/241871179

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	Source of the optical beam can be anything available, including a light bulb or a laser.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com