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.

Example Input: Sentence 1: Several young people in red shirts are sitting on steps. Sentence 2: A sports team is sitting on stairs.
Example Output: Youngsters wearing red sit on the steps.

Example Input: Sentence 1: A man kneeling on a roof touching a piece of plywood wearing sunglasses. Sentence 2: A man kneeling on a roof is fixing a spot on the roof with a piece of plywood.
Example Output: A man wearing sunglasses is kneeling on the top of a house.

Example Input: Sentence 1: Several people are drinking and socializing at a party. Sentence 2: People are celebrating someones birthday.
Example Output:
People are at a party.