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 in white dumping carts into the dumpster. Sentence 2: A man dumps out the trash he cleaned out of his garage.

SOLUTION: Man putting carts in dumpster.

PROBLEM: Sentence 1: A guy with no shirt and no shoes, who is painting the floor. Sentence 2: A man is working.

SOLUTION: A man is painting.

PROBLEM: Sentence 1: Four football players raise their helmets at the game. Sentence 2: These people are all seniors in high school.

SOLUTION:
The guys here know the rules of football.