TASK DEFINITION: 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.
PROBLEM: Sentence 1: A young man sits on a chair with one shoe off. Sentence 2: Someone has taken a shoe off.

SOLUTION: Everyone is wearing two shoes.

PROBLEM: Sentence 1: Compact cars line the streets and a series of tents is set up along one sidewalk. Sentence 2: There are tents next to the sidewalk.

SOLUTION: There are only buses along the street.

PROBLEM: Sentence 1: A guy wearing a black shirt and a red hat riding his skateboard. Sentence 2: A guy is riding a skateboard.

SOLUTION:
A guy is riding a scooter.