<http://webisa.webdatacommons.org/8825452>	<http://www.w3.org/ns/prov#value>	"Image: LLBL Ducts that run through cellars, attics, and crawlspaces are an integral part of a forced-air heating or cooling system and their purpose is to circulate air to evenly heat and cool your home." .
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<http://webisa.webdatacommons.org/8825452>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<daviddarling.info> .
<http://webisa.webdatacommons.org/8825452>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .