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<http://webisa.webdatacommons.org/prov/340431141>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/437814855> .
<http://webisa.webdatacommons.org/437814855>	<http://www.w3.org/ns/prov#value>	"It is intended to maintain environmental conditions and help control elements such as heat and moisture." .
<http://webisa.webdatacommons.org/prov/5255974>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/437814855> .
<http://webisa.webdatacommons.org/437814855>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wisegeek.com> .