About: http://webisa.webdatacommons.org/373663495

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	Further, the laser sources 210r, 210g, and 210b can be replaced with light sources such as light emitting diodes for generating similar light beams.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com