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: People walking past man on stilts and a tall black hat entertaining people. Sentence 2: entertainers outside while people walk by

SOLUTION: people are inside watching an event

PROBLEM: Sentence 1: Two dogs play in the surf and one has a red ball. Sentence 2: There are two dogs playing in the water.

SOLUTION: There are two dogs with a blue ball

PROBLEM: Sentence 1: A young man does a trick on his skateboard in a somewhat crowded park area. Sentence 2: A young man skateboarding.

SOLUTION:
A young man diving into a pool.