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 chubby looking boy with a Mohawk and glasses staring at the camera with a plain look. Sentence 2: A heavy boy with a Mohawk is taking a boring picture.
Example Output: A skinny boy with dread locks is smiling intensely.

Example Input: Sentence 1: A black dog running in the grass. Sentence 2: The black dog is running.
Example Output: The white dog is running.

Example Input: Sentence 1: An accordion player wearing a heavy jacket, scarf and beanie standing by a yellow telephone pole. Sentence 2: The accordion player is wearing a scarf.
Example Output:
A flute player standing inside next to the bar.