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 man wearing blue jeans, blue shirt and a cap runs in front of a large truck on a street. Sentence 2: A man in blue jeans and a blue shirt is training for a marathan.

SOLUTION: A man runs on the street.

PROBLEM: Sentence 1: Man works on lowering a train on tracks. Sentence 2: The man works on a life and death situation.

SOLUTION: A worker at the trainyard.

PROBLEM: Sentence 1: Three people walking through the subway station, while a fourth person waits. Sentence 2: A friend is waiting for three people to meet him at the subway station to go eat

SOLUTION:
A friend is waiting for three people to meet him at the subway station