Premise: Young children play in the sprinkler.

Hypothesis: The children are playing.
yes

Premise: A man in a restaurant kitchen, dressed in white with a white apron and a straw hat, is preparing to taste some concoction that is simmering in a large steel pot.

Hypothesis: A chef is preparing to taste what he has just cooked.
it is not possible to tell

Premise: People are waiting for a train at the subway.

Hypothesis: People are waiting for a carpool to arrive.
no

Premise: Two dogs running through a field.

Hypothesis: A pack of lions hunt their prey.
no