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 cowboy in the dirt on the ground next to a horse. Sentence 2: A horse and his rider.

SOLUTION: The horse was riding the cowboy until he got tired.

PROBLEM: Sentence 1: A man with a gray shirt and gray pants is working on a project near the water with another man who is wearing just shorts and a hat. Sentence 2: The two men are working together.

SOLUTION: They are complete strangers.

PROBLEM: Sentence 1: An audience listens to a musical ensemble play in front of a pipe organ in an ornate performance hall. Sentence 2: The audience is listening to music.

SOLUTION:
The audience is watching a play.