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<http://webisa.webdatacommons.org/prov/139506324>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/392815846> .
<http://webisa.webdatacommons.org/392815846>	<http://www.w3.org/ns/prov#value>	"drug use by youth is associated with serious problems, such as delinquency," .
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