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 man with gray hair accepts coins in front of a kiosk that has a multitude of fine colored powders in large bowls on display. Sentence 2: A man has gray hair.
Example Output: A man has white hair.

Example Input: Sentence 1: A crosscountry biker with helmet and sports gears (green and black) is jumping in the air with his bike that has dirty tires. Sentence 2: A biker performs a stunt.
Example Output: Two people talk in private.

Example Input: Sentence 1: Young boy wearing an Elmo t-shirt kneeling at a table with his meal. Sentence 2: A young boy is kneeling at a table.
Example Output:
A young girl stands on his meal.