Premise: A man in a pullover sweater is smiling as he holds a violin.

Hypothesis: The man is going to play music on his violin.
it is not possible to tell

Premise: A smiling woman with a pixie haircut is drawing pictures on a wall.

Hypothesis: The woman is drawing on the wall
yes

Premise: A woman relaxing in a sauna.

Hypothesis: A woman in a sauna.
yes

Premise: Students in a class are taking an exam.

Hypothesis: Students are in a classroom indoors.
it is not possible to tell