Premise & hypothesis.
Children in canoes floating down a river.

The kids paddle hard upstream.
++++++++++
true or not.
no

Premise & hypothesis.
A snowboarder flying through the air doing a trick on a snowy mountain.

a moose runs
++++++++++
true or not.
no

Premise & hypothesis.
A girl in a white t-shirt and bikini bottoms jumps into a lake.

A girl was jumping in the lake for the first time.
++++++++++
true or not.
it is not possible to tell