Assertion: methadone | /r/HasProperty | manufactured for use
Facets:
value: as a painkiller
type: PURPOSE
Source sentences:
text: Methadone is a synthetic opiate manufactured for use as a painkiller and as a substitute for heroin in the treatment of heroin addiction.
text: Methadone is a synthetic opiate manufactured for use as a painkiller and as substitute for heroin in the treatment of heroin addiction.