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 baseball team being coached. Sentence 2: baseball team has a coach.
Example Output: A baseball team has no coach.

Example Input: Sentence 1: African children are being taught by a teacher. Sentence 2: A group of students are listening to their teacher in Africa.
Example Output: A group of students play at recess.

Example Input: Sentence 1: An Asian youth with red-hair and painted face plays a guitar and sings. Sentence 2: A youth with red hair makes music.
Example Output:
A youth is frying hamburgers over a stove.