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.

Input: Consider Input: Sentence 1: A man in a red helmet rollerblades near the beach with two dogs on a leash. Sentence 2: There are rollerbladers on the beach.

Output: A jogger is running with his two dogs.

Input: Consider Input: Sentence 1: A man wearing a black shirt, jeans, and skate shoes is jumping near a pond. Sentence 2: The man is jumping.

Output: The man is standing still.

Input: Consider Input: Sentence 1: A blond-haired boy in his pajamas sits on a red chair next to a black guitar and looks at a book. Sentence 2: The blonde boy sat next to the guitar and book.
Output: The boy was sitting on a blue chair.