Premise: A man performing a bicycle trick inside in midair.

Hypothesis: A man is riding on a bike indoors.
yes

Premise: A man in a black shirt points a microphone at a crowd.

Hypothesis: Someone is giving a speech.
it is not possible to tell

Premise: A black dog jumps into a pool that has many yellow balls in it.

Hypothesis: The dog is jumping in to chase another dog.
it is not possible to tell

Premise: a boy swings on the swing.

Hypothesis: A boy swings outside.
yes