premise: A man in a restaurant kitchen, dressed in white with a white apron and a straw hat, is preparing to taste some concoction that is simmering in a large steel pot. hypothesis: The man in the straw hat is chopping up an onion.
contradiction: A man that is tasting his concoction (multiple food items) that is simmering in a large steel pot contradicts him chopping up a single onion (one item).