Premise: Black dog sitting while eating with neon yellow band around shoulders.

Hypothesis: The dog is white.
no

Premise: A man sits behind a music stand playing the guitar while people perform in the background.

Hypothesis: The man is playing a tuba.
no

Premise: A female jogger in white shorts stretches while a man dressed in jogging pants passes by her.

Hypothesis: The woman was warming up for a run around the park
it is not possible to tell

Premise: A helmeted man with a camera around his neck is riding a scooter and waving hello.

Hypothesis: There is a helmeted woman.
no