premise: A woman squatting in the grass is smiling at a little boy, as he smiles and raises his hands in the air. hypothesis: An angry woman is arresting a boy, and that is why his hands are in the air.
contradiction: A woman smiling at a little boy who smiles in return and raises his hands in the air is very different from an angry woman who is arresting a boy who therefore puts his hands in the air as in a self-defense or self-protection movement.