Assertion: opium | /r/HasAspect | long history
Facets:
value: in china
type: LOCATION
value: as a treatment drug
type: MANNER
Source sentences:
text: Opium, the mother of all pain relief medications, has a long history as a treatment drug.
text: Opium has had a long history in China.
text: Opium has a long history dating back to thousands of years.