instruction:
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.
question:
Sentence 1: A man in a polo shirt sits in a chair looking at a computer screen. Sentence 2: A man is looking at porn on his computer.
answer:
A man is looking at a computer.


question:
Sentence 1: Man in a white shirt jumping toward a brick wall. Sentence 2: A man jumps toward a wall to catch the ball
answer:
A man jumping toward a wall


question:
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.
answer:

Four young men dressed in front of a wall are jumping down the stairs.