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 man with a shaved head and a button-up shirt looks into a microscope near a poster about red blood cells. Sentence 2: A scientist studies a vaccine.

A: A man without hair near a poster about red blood cells is looking through a microscope.
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Q: Sentence 1: Brown dog with black collar licking nose. Sentence 2: The dog licks the sauce from his nose.

A: A dog liking them self.
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Q: Sentence 1: Five people celebrate victory by opening a bottle of champagne before photographers. Sentence 2: The people are pouring champagne.

A:
There is a group of people celebrating.
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