Premise & hypothesis.
A person is snowboarding wearing a helmet.

There is a snowboarder riding down the mountain.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A person is waving some sort of light source around while standing on a patch of grass.

The person waves a flag on the patch of grass.
++++++++++
true or not.
no

Premise & hypothesis.
A woman is holding the cheeks of a man on the beach.

A couple is sleeping in their bed.
++++++++++
true or not.
no