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 blue jacket smiles back at the camera, positioned in front of a lake or large river on a clear sunny day. Sentence 2: A man is posing for a picture outside.

SOLUTION: A man is snowboarding down a huge mountain.

PROBLEM: Sentence 1: A man in a striped shirt and jeans, and a woman in a white top dancing with each other. Sentence 2: The man and woman are dancing.

SOLUTION: The man and woman are sitting down watching tv.

PROBLEM: Sentence 1: Two woman in bikinis are playing beach volleyball. Sentence 2: The women are playing volleyball at the beach.

SOLUTION:
The women are swimming in a pool.