instruction:
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.
question:
Sentence 1: Four men are rollerskating in a line, with the last three holding onto the hips of the man ahead of them. Sentence 2: Four men are forming a congo line.
answer:
A group of guys carrying surfboards.


question:
Sentence 1: A person wearing a hat and baggy pants is skateboarding on cement. Sentence 2: A human rides a skateboard.
answer:
An old man falls off a skateboard.


question:
Sentence 1: A man looking at the scenery through binoculars. Sentence 2: A man is using a tool to improve his view.
answer:

The man is reading a book.