About: http://webisa.webdatacommons.org/359627785

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	Methadone is a morphine-based product used as a heroin substitution therapy and analgesic, according to a Food and Drug Administration drug safety newsletter.
http://www.w3.org/ns/prov#wasQuotedFrom	pntonline.com