premise: A young blond boy with a giraffe on his shirt is looking at something in an women's hand. hypothesis: A bald boy with a bird on his shirt is staring at the sky.
contradiction: A boy cannot be blonde and bald at the same time.  If the boy has a giraffe on his shirt then it doesn't have a bird on it.  If the boy is looking at something in the woman's hand then he would not be staring up at the sky.