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: Soccer players warming up on the field before a game. Sentence 2: Soccer players getting ready to play
Example Output: soccer players on a field

Example Input: Sentence 1: A person climbing a large moss-covered rock Sentence 2: There is a person on top of a large rock pulling someone else up.
Example Output: A person is climbing a rock.

Example Input: Sentence 1: Three people cleaning windows and a woman in a blue shirt talking to them. Sentence 2: Some workers clean windows on a building.
Example Output:
Some people clean windows while a woman talks.