Premise: "A water boarder being towed down a water rail."\nHypothesis: "A water boarder is being towed very quickly."\nDo we know that the hypothesis entailed by the premise?
Step-by-step reasoning:
it is not possible to tell
Just because the water boarder is being towed doesn't mean it's being done so quickly.

.

So, the final answer is it is not possible to tell