Assertion: morphine | /r/AtLocation | the system
Facets:
value: for multiple days
type: TEMPORAL
Source sentences:
text: Morphine stays in the system for multiple days, but the effects of the drug usually wear off within a few hours.
text: Morphine is known to stay in the system up to 72 hours, with the high wearing off after 6-12 hours of the last dosage.