Premise & hypothesis.
Three firemen with oxygen tanks on their backs walk up a metal ramp.

Three firemen are having dinner with a fire at a fancy restaurant.
++++++++++
true or not.
no

Premise & hypothesis.
The young cook tastes his food.

A young man tests his food before he serves.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
Going down the slide at the carnival.

A dog eating a man's ice cream cone.
++++++++++
true or not.
no