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 group of ladies walk down a busy sidewalk. Sentence 2: A group of people walk on a sidewalk.
[EX A]: A group of women lead a riot.

[EX Q]: Sentence 1: four young people have stopped to listen to a man play a saxophone. Sentence 2: A man is playing the saxophone.
[EX A]: Four young people are listening to a man play the guitar.

[EX Q]: Sentence 1: Four students are sitting on the floor by a model volcano. Sentence 2: Four students are sitting together.
[EX A]:
Eight students are sitting near a model train.