About: http://webisa.webdatacommons.org/368652366

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	It is noted that, in general, a laser beam, such as He???Ne laser, or white light is used as the alignment light.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com