Premise: These men are practicing martial arts.

Hypothesis: Some men are practicing.
yes

Premise: A man wearing a black suit is surrounded by many people inside a building with busts of people on the wall.

Hypothesis: There are people walking in a building.
it is not possible to tell

Premise: A gentlemen is laying on the ground napping.

Hypothesis: The man is watching t.v.
no

Premise: white gull flying over ocean

Hypothesis: A white bird floating in the ocean.
no