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 skateboarded is doing a handstand on a board in the street. Sentence 2: A skateboarder is doing a handstand in front of an audience.

SOLUTION: A skateboarder is performing a trick in the street.

PROBLEM: Sentence 1: A man on a steep incline wearing a white shirt is working on a roof, with lots of debris all around. Sentence 2: A man is cleaning all the trash off a roof.

SOLUTION: The man is doing work.

PROBLEM: Sentence 1: Several people walk in a pedestrian shopping street. Sentence 2: People are walking throught the street market shopping.

SOLUTION:
People are walking down the street.