<http://webisa.webdatacommons.org/prov/66832835>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/231418941> .
<http://webisa.webdatacommons.org/231418941>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<newscientist.com> .
<http://webisa.webdatacommons.org/231418941>	<http://www.w3.org/ns/prov#value>	"Hydrocarbons such as pentane are highly flammable, for instance, while hydrofluorocarbons (HFCs) are also potent greenhouse gases (This Week, 7 February, p 13)." .
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