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 on a bicycle is pulling a cart full of sticks and branches down a road. Sentence 2: The man is clearing brush from a forest.

A: A man on a bicycle is moving sticks and branches.
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Q: Sentence 1: A father and his son bonding. Sentence 2: A father and his son are playing catch.

A: A man has a son.
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Q: Sentence 1: A man uses a chainsaw to cut up wood. Sentence 2: The man used his chainsaw to cut firewood for the campfire.

A:
The man was cutting wood using a chainsaw.
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