Question:
Premise: Skateboarder performing a spectacular stair jump.

Hypothesis: a man falls down the stairs
Is the hypothesis true?

Answer:
no

Question:
Premise: A football player trying to tackle another while a ref attempts to keep up.

Hypothesis: A football player makes an illegal tackle.
Is the hypothesis true?

Answer:
it is not possible to tell

Question:
Premise: Two soccer players, one wearing white and the other green, are playing soccer and being filmed by a cameraman in the background.

Hypothesis: Two football players throwing a football back and forth.
Is the hypothesis true?

Answer:
no