Assertion: squirrel's population | /r/CapableOf | become distinct
Facets:
value: over thousands of years
type: TEMPORAL
value: a process that gave
type: OTHER
value: increasingly
type: DEGREE
Source sentences:
text: Over thousands of years, these isolated, mountain-top populations became increasingly distinct, a process that gave rise to the Carolina northern flying squirrel, a subspecies of northern flying squirrel only found in the high-elevation areas of North Carolina, Tennessee, and southwest Virginia.