Assertion: trout's range | /r/CapableOf | start to extend west
Facets:
value: through introductions
type: MANNER
value: from its native range
type: LOCATION
Source sentences:
text: As early as 1850, the brook trout's range started to extend west from its native range through introductions.
text: As early as 1850 the range of the brook trout started to extend west through introductions.