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: Two young girls jumping and having fun on a trampoline in a backyard setting. Sentence 2: Two children are playing on a trampoline.

SOLUTION: Three children are jumping on a trampoline.

PROBLEM: Sentence 1: A chubby looking boy with a Mohawk and glasses staring at the camera with a plain look. Sentence 2: A heavy boy with a Mohawk is taking a boring picture.

SOLUTION: A skinny boy with dread locks is smiling intensely.

PROBLEM: Sentence 1: A group of people wearing coats and sweaters are shopping at produce and deli stands; one stand has a purple sign that says "TRIPE". Sentence 2: There are a group of people shopping.

SOLUTION:
A group of people are waiting in line to ride a roller coaster.