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: A man in blue pants is doing a split in the air. Sentence 2: A man does a grand jete.
Example Output: A man makes a cocktail.

Example Input: Sentence 1: A girl with red pants drives a scooter. Sentence 2: A girl is in motion.
Example Output: A girl is driving a BMW on the highway.

Example Input: Sentence 1: A gymnast is balancing on a balance beam. Sentence 2: A gymnast is standing on a beam.
Example Output:
A gymnast is dancing on the floor mat.