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 with gray hair accepts coins in front of a kiosk that has a multitude of fine colored powders in large bowls on display. Sentence 2: A man has gray hair.

SOLUTION: A man has white hair.

PROBLEM: Sentence 1: A woman stands in front of a display case and another woman looks at a digital camera Sentence 2: The woman is standing while another is looking at something.

SOLUTION: The women are running down the street.

PROBLEM: Sentence 1: A man wearing a jean jacket tuning an electric guitar. Sentence 2: A musician fixing his guitar with a tunner.

SOLUTION:
A man smashing a electric guitar on the ground.