Premise: A motorcyclist in a blue motorbike in a racing track.

Hypothesis: The man only raced on his green motorbike.
no

Premise: A man is sitting on a bench in front of an abandoned building.

Hypothesis: A man is waiting to meet with someone.
it is not possible to tell

Premise: Two men in the ocean surfing on the boards trying to catch some waves.

Hypothesis: There are two men in wetsuits surfing.
it is not possible to tell

Premise: Students are sitting lined up on stair steps while they wait and check their electronic devices.

Hypothesis: Some students are waiting to vote.
it is not possible to tell