About: http://webisa.webdatacommons.org/36015288

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	In another embodiment, the indicator is a light source, for example, laser light.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com