About: http://webisa.webdatacommons.org/358358965

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	A point light source enables effective convergence of light by means of an optical means including lenses, and is practically advantageous in most cases.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com