<http://webisa.webdatacommons.org/345252906>	<http://www.w3.org/ns/prov#value>	"It is the most comprehensive gathering of scientific information on all aspects of substance abuse and is invaluable to researchers and other scientists." .
<http://webisa.webdatacommons.org/345252906>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<drugabuse.gov> .
<http://webisa.webdatacommons.org/345252906>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/193770804>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/345252906> .