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: A man wearing blue jeans, blue shirt and a cap runs in front of a large truck on a street. Sentence 2: A man in blue jeans and a blue shirt is training for a marathan.
Example Output: A man runs on the street.

Example Input: Sentence 1: A group of people having a barbecue at a park. Sentence 2: The barbecue is to celebrate winning the soccer tournament.
Example Output: Some people are having a barbecue.

Example Input: Sentence 1: A man and a woman search for records while a man in a blue hooded shirt looks in the other direction. Sentence 2: The man in the blue shirt was not paying attention to the other two people.
Example Output:
The man and woman were searching for information.