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 man in a leather jacket is reading a book. Sentence 2: A man in a jacket is reading.

SOLUTION: A man in a leather jacket is ridding a motorcycle.

PROBLEM: Sentence 1: A man is standing with his hands out to his side inside of a green sculpture. Sentence 2: A man is standing.

SOLUTION: The man is sitting down looking at a green sculpture from ten feet away.

PROBLEM: Sentence 1: Two black dogs are swimming in a pool. Sentence 2: Dogs swim in a pool.

SOLUTION:
A woman swims with her dog.