In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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: A woman playing at a slot machine. Sentence 2: A woman is hoping to win the slot machine jackpot.

A: A woman is in front of a machine.
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Q: Sentence 1: A young man sits with his elbows on his legs while he reads a book. Sentence 2: A teenager is flipping through a book in the library.

A: A book reader is engrossed in his book.
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Q: Sentence 1: Black dog near a dock looks into murky water Sentence 2: A dog is at a lake.

A:
A dog is near dirty water.
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