Premise: Male on a skateboard, using an empty pool as a ramp on a very pretty day.

Hypothesis: A male on a skateboard, using a ramp at a skatepark on a cloudy day.
Relation: contradiction

Hypothesis: A male broke into an old abandoned hotel and used the empty pool as a ramp to skateboard.
Relation: neutral

Hypothesis: A person is riding a skateboard outside.
Relation: entailment