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 girl in tan shorts and a black yellow swimsuit top is stretching. Sentence 2: A girl is stretching.

SOLUTION: The girl is watching television.

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 young girl playing clarinet in a musical group. Sentence 2: A girl playing clarinet in a musical group.

SOLUTION:
An old girl playing clarinet in a musical group.