Premise: A swan preparing for flight across the pond

Hypothesis: A swan lands on a river bank.
no

Premise: A girl in stripey socks sleeping on a green sofa with red pillows.

Hypothesis: A girl is asleep.
yes

Premise: A man walks his black dog down the cement steps where a woman dressed in black sits.

Hypothesis: The man was walking his cat.
no

Premise: A man with a rifle is posing with his dog.

Hypothesis: A man poses with his dog.
yes