In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair 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: Man wearing hat and glasses working on a bicycle. Sentence 2: A man is working on his bike.
Example Output: A person is riding his bicycle on the street.

Example Input: Sentence 1: A person standing by a car parked by Swan Restaurant on a rainy night. Sentence 2: A person getting ready to get in his car.
Example Output: A person in a restaurant ordering the most expensive things on the menu.

Example Input: Sentence 1: Two children, one wearing purple, the other black, ride a single bike on the pavement. Sentence 2: Two children ride the same bike.
Example Output:
Two adults ride a double seater bike.