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: Person riding wave on stomach on a blue surfboard. Sentence 2: A person on a wave.

SOLUTION: Nobody on a wave.

PROBLEM: Sentence 1: Woman by building in short coat with other building in view. Sentence 2: The woman is wearing a coat.

SOLUTION: A man in a trench coat with building in view.

PROBLEM: Sentence 1: A German shepherd is jumping over three striped bars in a competition. Sentence 2: A dog is jumping.

SOLUTION:
Two German shepherds are running on the road.