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 works on the rear tire of a bike while a baby looks on from behind the bike. Sentence 2: A man fixes a flat on a mountain bike path.

A: A man repairs a bicycle tire.
****
Q: Sentence 1: Two men in camouflage pants are running past a parking lot. Sentence 2: Men dressed in army clothing run in parking lot.

A: Two men are running in a parking lot.
****
Q: Sentence 1: An African man is working with a wooden machine. Sentence 2: He is working hard at his job.

A:
A man is working with a machine
****