TASK DEFINITION: In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair 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 young lady in motion on cobblestone in front of multicolored houses. Sentence 2: A young lady is outside.

SOLUTION: A man is looking for a dog.

PROBLEM: Sentence 1: A football player kicks the ball. Sentence 2: A member of a sports team playing a game.

SOLUTION: A baseball player on the bench.

PROBLEM: Sentence 1: A woman who cleans out port-a-potties rests. Sentence 2: Her job is smelly.

SOLUTION:
White mice fly helicopters.