premise: A ballerina standing on the toes of one food with one arm up in the air and one leg lifted behind her. hypothesis: The ballerina is sleeping soundly.
contradiction: The ballerina cannot be standing and sleeping at the same time.  Toes are on the foot not food.|contradiction: The ballerina cannot be standing and sleeping at the same time.|contradiction: The ballerina cannot be standing on her toes while sleeping.