About: http://webisa.webdatacommons.org/21588161

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	While radioactive sources provide an inexpensive way to serve functions such as food sterilization, smoke detection, and oil well logging, there are sometimes other, though possibly more expensive, ways to perform the same functions.
http://www.w3.org/ns/prov#wasQuotedFrom	fas.org