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<http://webisa.webdatacommons.org/prov/193558148>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/188368865> .
<http://webisa.webdatacommons.org/188368865>	<http://www.w3.org/ns/prov#value>	"Voids caused by settlement, frost heave, or other conditions can result in open flow channels in the foundation." .
<http://webisa.webdatacommons.org/188368865>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<hydroworld.com> .