premise: A young man standing on one foot in colorful bowling shoes after throwing the ball. hypothesis: A young man is standing on both feet barefooted.
contradiction: The young man can't stand on one foot and both feet.|contradiction: If a man is standing on two feet, then he is not standing on only one foot. If he is wearing bowling shoes, then he is not barefooted.|contradiction: The man cannot be on one foot if he is standing on both feet. He cannot be barefooted if he is wearing colorful bowling shoes.