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.

Sentence 1: A man with gray hair accepts coins in front of a kiosk that has a multitude of fine colored powders in large bowls on display. Sentence 2: A man has gray hair.
A man has white hair.

Sentence 1: Two performers put on a show for an audience that watches from behind them. Sentence 2: People put on a show
Two performers are laying down

Sentence 1: A boy on a bicycle is looking at the building. Sentence 2: The bike has a single rider.

The young woman rides a bicycle.