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 little boy is jumping into the kiddie pool in the backyard. Sentence 2: A boy is playing in the pool.
Example Output: A boy is playing in the sandbox.

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 man is skateboarding in front of a group of people. Sentence 2: A group of people watch a man skateboard.
Example Output:
A man rides a surfboard on the back of a killer whale.