Assertion: duck | /r/HasProperty | imported to england
Facets:
value: in the mid-18th century
type: TEMPORAL
value: because of their beautiful colors
type: CAUSE
Source sentences:
text: Because of their beautiful colors, the ducks were imported to England in the mid-18th century, but they didn't begin to breed in the wild until the 1930s after the ducks escaped from private grounds.