premise: A man is pushing many cartons of bread down the street. hypothesis: A woman is baking bread in the oven.
contradiction: The subject is either a man or woman. There wouldn't be an oven on the street.|contradiction: A person cannot be a man and a woman at the same time. One cannot be baking bread and pushing cartons of bread simultaneously. An oven is unlikely to be situated in the street.|contradiction: pushing many cartons of bread is not baking bread in the oven.