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 stoplight is yellow next to a pedestrian crossing sign. Sentence 2: Someone is waiting to cross the street

SOLUTION: The stoplight will turn red shortly

PROBLEM: Sentence 1: A group of people gathered at a school. Sentence 2: The school doors are about to open.

SOLUTION: People gather at the school.

PROBLEM: Sentence 1: A man in a blue jacket and hat talks. Sentence 2: A man is standing while he talks.

SOLUTION:
A man is talking.