About: http://webisa.webdatacommons.org/394802385

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	Referring to FIG. 2, the laser beams which have been previously modulated by modulating signals such as video signals are emitted from laser beam sources 21, 31.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com