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: One girl is standing on the street, and the other is crouching looking at something on the ground. Sentence 2: A girl is preoccupied with something on the ground.

A: A teacher is talking to her classroom.
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Q: Sentence 1: Three women wearing blue walk along a sidewalk while laughing and smiling. Sentence 2: Three happy looking women are walking outside.

A: The three women watch a man fall down and laugh at him.
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Q: Sentence 1: A man in a green polo plays guitar in front of a window. Sentence 2: The musician is practicing

A:
The woman plays the piano
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