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: With flowers in the foreground, a man in a blue striped shirt bikes past a large white building. Sentence 2: A man riding his bike in front of buildings outside.

SOLUTION: A man walks in the countryside, picking up flowers from the side of the road.

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: a young girl wearing a black shirt and blue jeans running through the grass. Sentence 2: A girl is outdoors.

SOLUTION:
Girls sit on the concrete steps.