Premise & hypothesis.
A small dog leaps over a striped hurdle.

A small dog leaps over a rock.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A pair of skiers, a man and a woman, are climbing up a snowy and tree-lined hill.

Its summer
++++++++++
true or not.
no

Premise & hypothesis.
The red-haired girl is taking a break from shopping.

The girl is sitting on a bench
++++++++++
true or not.
it is not possible to tell