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.

[EX Q]: Sentence 1: A child is sliding down a hill on a sled. Sentence 2: The child was outdoors.
[EX A]: A child is sliding up a hill on a sled.

[EX Q]: Sentence 1: African children are being taught by a teacher. Sentence 2: A group of students are listening to their teacher in Africa.
[EX A]: A group of students play at recess.

[EX Q]: Sentence 1: A man in a green shirt and black hat playing a guitar on stage. Sentence 2: A man in a green shirt is playing guitar.
[EX A]:
A woman in a leather duster is playing guitar for an excited crowd.