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.

Sentence 1: Four casually dressed guys jumping down a stairway outdoors with a stone wall behind them. Sentence 2: Four guys are hurrying to their cars by jumping down stairs.
Four young men dressed in front of a wall are jumping down the stairs.

Sentence 1: A girl in a black leotard dances while a girl in a red leotard and torn stockings watching in the middle of a street. Sentence 2: A girl does a leap in her dance on the street.
The men and women are dressed properly for a hot day on the sand.

Sentence 1: A man is playing a guitar solo Sentence 2: A man is performing for his girlfriend.
A man is playing guitar.