TASK DEFINITION: In this task, you're given a pair of sentences, sentence 1 and sentence 2, that contradict each other. Your job is to alter sentence 2 so that the pair agree with 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 child is in a harness climbing a rock wall. Sentence 2: a old man climbs rock wall

SOLUTION: a young child climbs a rock wall

PROBLEM: Sentence 1: Three kids practice martial arts, one has a yellow belt, on a red belt and the other a white belt. Sentence 2: Three Kids are fighting on a Bus.

SOLUTION: Three kids are practicing martial arts.

PROBLEM: Sentence 1: A man in blue shirt and pants stands in front of a large sign displaying a yak. Sentence 2: A man in red shirt and pants sits in front of a large sign displaying a yak.

SOLUTION:
A man is standing in front of a sign.