About: http://webisa.webdatacommons.org/358734724

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Safety and purity is an issue among the less tolerated drugs, e.g. heroin, cocaine, and meth.
http://www.w3.org/ns/prov#wasQuotedFrom	theairspace.net