Assertion: border collie's dog | /r/CapableOf | work long hours
Facets:
value: over rugged terrain
type: LOCATION
Source sentences:
text: What is known for certain is that the modern-day Border Collie is a product of the pastoral borderland between England and Scotland where shepherds needed a sturdy, trainable dog that would flaunt its natural herding and intellectual prowess while working long hours over rugged terrain.