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 skateboarder does a stunt in the city. Sentence 2: A skateboarder does a trick for the crowd.

SOLUTION: A person is skateboarding in the city.

PROBLEM: Sentence 1: Four men, three of whom are wearing prayer caps, are sitting on a blue and olive green patterned mat. Sentence 2: People are praying on a mat.

SOLUTION: People are sitting on a mat.

PROBLEM: Sentence 1: Two men wearing padding are fighting. Sentence 2: Two boxers fight in the final round of a fight.

SOLUTION:
Two fighters in the middle of a fight.