Assertion: opium's morphine | /r/HasProperty | effective painkillers
Facets:
value: in relieving cancer pain
type: TRANSITIVE-OBJECT
Source sentences:
text: When impure it can be brown in colour, it contains morphine and cadeine, both effective painkillers.
text: A 2016 Cochrane review concluded that morphine is effective in relieving cancer pain.
text: Opium contains morphine and codeine, both effective painkillers.