Leo: Premise: "A snowboarder flips upside down with a snow covered hill in the background."
Hypothesis: "Skiers are sitting around a campfire in the dark."
Do we know that the hypothesis entailed by the premise?
Mei: OK, So, let's think first...
Me:
Skiers sitting around a campfire could not also be a snowboarder that flips upside down.
Thus, the answer is no.