About: http://webisa.webdatacommons.org/281613856

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	This was 1981 and I don???t think I had ever seen any vapor, tungsten, halogen or other lights - just fluorescents and incandescents.
http://www.w3.org/ns/prov#wasQuotedFrom	nuforc.org