Assertion: mariana mallard | /r/CapableOf | become extinct
Facets:
value: unfortunately
type: MANNER
value: in the late 20th century
type: TEMPORAL
value: in the 1980s
type: TEMPORAL
Source sentences:
text: The Mariana mallard was a resident allopatric population – in most respects a good species – apparently initially derived from mallard-Pacific black duck hybrids; unfortunately, it became extinct in the late 20th century.
text: The Mariana mallard was a resident allopatric population – in most respects a good species – apparently initially derived from mallard-Pacific black duck hybrids; unfortunately, it became extinct in the late 20th century.
text: The Mariana Mallard was derived from Mallard × Pacific Black Duck hybrids, but became extinct in the 1980s.