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 neither agree nor 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 is skateboarding in front of a group of people. Sentence 2: A man on a skateboard.

A: A man is performing tricks in a skate park in front of an audience.
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Q: Sentence 1: A man starts walking towards a bowling lane, appearing to be winding up for a bowl. Sentence 2: There is a man in the bowling alley.

A: The person bowls a strike.
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Q: Sentence 1: A construction worker is working on a support beam on a building. Sentence 2: A construction worker performs his job.

A:
The construction worker is welding.
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