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 carrying a stack of newspapers on his head turns around to look at camera. Sentence 2: A man is walking.
Example Output: A blind woman is petting her dog.

Example Input: Sentence 1: A musician with a guitar on stage in front of a microphone gesturing to the crowd with the drummer in the background. Sentence 2: A musician is on a stage.
Example Output: A musician with a guitar is packing up the guitar into a case.

Example Input: Sentence 1: A dog running on the sand. Sentence 2: a dog is running on sand
Example Output:
a dog is playing with sheep in a grass field