Assertion: turkish opium | /r/CapableOf | lose some of its preeminence
Facets:
value: in the late seventies
type: TEMPORAL
value: in eighties
type: TEMPORAL
Source sentences:
text: Turkish opium, noted for its strength and high quality, usually provided between 80 and 90% of Britain's total import of the drug, only losing some of its preeminence in the late seventies and eighties when the Persian variety was more widely imported.