Premise: Three children practice karate in uniforms.

Hypothesis: The kids are winning a karate competion
no

Premise: A boy in a red shirt and jean shorts jumping off a swing.

Hypothesis: A boy is swinging on an elephants trunk.
no

Premise: Someone in a pink shirt is riding a brown horse in a rodeo.

Hypothesis: The outfielder is waiting to catch the flyball for the final out.
no

Premise: Two boys are participating in a relay race with a baton.

Hypothesis: Two children are racing.
yes