Hardknott Pass, with gradients of 1:3, is the mother of all Lakeland passes; the road is narrow and steep and twists like a switch-back ride.
The road is narrow and steep.
mnli hypothesis: The road is narrow and steep. premise: Hardknott Pass, with gradients of 1:3, is the mother of all Lakeland passes; the road is narrow and steep and twists like a switch-back ride.