Premise: A kayaker in a green boat paddles through the rapids.

Hypothesis: An expert kayaker goes down the rapids.
it is not possible to tell

Premise: A man and woman are talking while a woman is looking at something in front of her.

Hypothesis: The woman is attractive.
it is not possible to tell

Premise: A girl in her ballet class

Hypothesis: a girl in class
yes

Premise: The building has many windows

Hypothesis: The building burned down.
no