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<http://webisa.webdatacommons.org/385658707>	<http://www.w3.org/ns/prov#value>	"This is seen to be true of stimulants such as Ritalin and caffeine, which may lead to tolerance, addiction, and ultimately a negative impact on cognitive functioning." .
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<http://webisa.webdatacommons.org/prov/184882848>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/385658707> .