TASK DEFINITION: In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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 sitting in a blue metal chair. Sentence 2: A man is exhausted and sitting down.

SOLUTION: A man is resting in a blue chair.

PROBLEM: Sentence 1: A man cleans the windows of a tall building, suspended only by a rope. Sentence 2: A man cleans the windows of a tall building with a towel.

SOLUTION: A man cleans the windows of a tall building.

PROBLEM: Sentence 1: A man atop a horse smiling at the camera below a set of mountains. Sentence 2: The man is smiling because his wife is taking the picture.

SOLUTION:
The man is smiling.