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: A woman in a purple shirt running a marathon getting water splashed on her. Sentence 2: A woman in a shirt running a marathon getting water splashed on her.

A: A man in a purple shirt running a marathon getting water splashed on her.
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Q: Sentence 1: Two costumed women holding a poster entitled "prom night". Sentence 2: Two women are in costume.

A: 'Anaconda' cosplayers are holding a giant snake at the convention.
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Q: Sentence 1: Girl in blue and white uniform doing cheers Sentence 2: A girl is cheerleading.

A:
A boy is performing in a marching band.
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