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 professional dirt biker doing stunts while being videotaped Sentence 2: The dirt biker, who is a professional, is being videotaped doing stunts.

SOLUTION: The professional dirt biker is being filmed sitting next to his bike.

PROBLEM: Sentence 1: A man playing ball at sunset. Sentence 2: A man is playing ball.

SOLUTION: A man is swimming in the pool.

PROBLEM: Sentence 1: Elderly person blowing bubbles outside. Sentence 2: An old person is blowing bubbles.

SOLUTION:
A boy is swimming.