About: http://webisa.webdatacommons.org/79473335

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 source of radiation is provided along one side of the housing and may comprise either a single radiation-emitting element or a plurality of such elements, depending upon cost, reliability, and other factors.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com