Premise: A man plays the guitar while sitting against a building.

Hypothesis: A man is sitting against a building playing cards.
no

Premise: two people smiling at something wearing t-shirts.

Hypothesis: Two people are remembering a funny joke.
it is not possible to tell

Premise: A dog is swimming in an above ground pool.

Hypothesis: dog swimming in a pool
yes

Premise: Two girls crouch in front of some bushes and talk on their phones.

Hypothesis: Two girls are floating in the ocean.
no