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 girl rides by on a bicycle while a boy watches her. Sentence 2: There is a girl riding a bike outdoors racing a boy
Example Output: There is a girl riding a bike

Example Input: Sentence 1: A man wearing glasses is singling while holding a guitar while a shirtless man in a fedora plays drums. Sentence 2: A person is singing a song he wrote.
Example Output: People are making music together.

Example Input: Sentence 1: An elderly man in a gray jacket is riding his bike down the street. Sentence 2: An old man with gray hair in a gray jacket is riding a bike alone.
Example Output:
An older man in a jacket is bicycling.