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: Four couples, all wearing green are dancing outdoors. Sentence 2: Several couples in green dancing outside.
Example Output: One couple is swimming.

Example Input: Sentence 1: A chinese man doing work on a sign Sentence 2: A man is working.
Example Output: A man is playing volleyball.

Example Input: Sentence 1: A cowboy is falling off a bull and looks like he might get trampled. Sentence 2: Cowboys ride bulls.
Example Output:
The bull is at a car dealership.