Premise & hypothesis.
A baby being held by a small girl, swimming underwater in a blue pool.

A baby is learning how to ride a bicycle.
++++++++++
true or not.
no

Premise & hypothesis.
Several men in yellow and green vest in a cafe having lunch.

The men are hiking up a tall mountain.
++++++++++
true or not.
no

Premise & hypothesis.
A person is skateboarding in a skate hole

A person going down a ramp at a skate park.
++++++++++
true or not.
it is not possible to tell