In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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 young boy, dressed in a karate gee and wearing a yellow belt, stands ready to defend himself inside a gym. Sentence 2: A yellow Belt Karate Student is fighting a White Belt Student.
Example Output: the boy is a karate student

Example Input: Sentence 1: Guy with a mohawk cutting meat. Sentence 2: A guy with a blue mohawk is cutting beef.
Example Output: A guy has a mohawk cutting meat.

Example Input: Sentence 1: Young kid in pajamas near the Christmas tree. Sentence 2: A kid playing in pajamas.
Example Output:
Kid is playing around christmas tree.