In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair contradict each other. Generated sentences must be short, with less than 15 words. New information can be introduced. Avoid using pronouns to confuse the subject of the sentence.

Q: Sentence 1: The black and white dog catches the tennis ball in his mouth. Sentence 2: A dog catches a ball.

A: A dog chases a cat to the shouts of its owner.
****
Q: Sentence 1: A man is cutting food on a watercraft at the dock as six pelicans float nearby in the water. Sentence 2: A man on a watercraft at the dock is cutting food as six pelicans float nearby.

A: A man is eating food, on a watercraft as peilicans float nearby.
****
Q: Sentence 1: A man, speaking on a cellphone, crosses a narrow street in a city. Sentence 2: The man is on a cell phone.

A:
The man is not talking on the phone.
****