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<http://webisa.webdatacommons.org/263741154>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .
<http://webisa.webdatacommons.org/263741154>	<http://www.w3.org/ns/prov#value>	"sensing devices can also be designed, for example, to monitor for many other chemicals including some narcotics, hydrocarbons, mercury vapor, and other hazardous chemicals including some representative vapors of explosives or some weapons of mass" .
<http://webisa.webdatacommons.org/prov/461904912>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/263741154> .