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 guy, wearing a Superman costume and cowboy hat, is carrying a sign about Designer Bags costing$ 10.00. Sentence 2: A man is holding a sign.
Example Output: A group of people are holding signs.

Example Input: Sentence 1: A man playing ball at sunset. Sentence 2: A man is playing ball.
Example Output: A man is swimming in the pool.

Example Input: Sentence 1: two teen boys wearing black are talking to each other on their sidewalk. Sentence 2: The boys are moving their mouths.
Example Output:
The boys are wearing all white outfits.