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 waiter dressed in business attire holds up a pan filled with meat laden with sauce and garnished with lemon. Sentence 2: A waiter is holding food.

SOLUTION: The man is taking a nap in between shifts.

PROBLEM: Sentence 1: A woman walking a bike down a busy sidewalk. Sentence 2: A person walking a bike down a busy sidewalk.

SOLUTION: A man walking a bike down a busy sidewalk.

PROBLEM: Sentence 1: Woman riding a bike at a street fair. Sentence 2: A woman is riding a bicycle.

SOLUTION:
A woman and her husband are riding books.