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: Two men wearing hats are standing on the path beside a brick building. Sentence 2: Two men know each other.

SOLUTION: Two men with hats are standing outside.

PROBLEM: Sentence 1: Two girls clean the glass windows of an entryway while another woman speaks to them. Sentence 2: Two girls wearing scarves cleaning glass while a woman speaks to them.

SOLUTION: Two girls cleaning glass while a woman speaks to them.

PROBLEM: Sentence 1: A man in a white t-shirt with blue letters wearing a seat belt has his arm around a girl in a black and white striped shirt and a necklace. Sentence 2: A couple on a plane, preparing for takeoff.

SOLUTION:
Two people sitting in a vehicle.