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 skier skiing down a large mountain Sentence 2: A person ice skating on a frozen lake.

SOLUTION: A skier is skiing.

PROBLEM: Sentence 1: A man climbing a rock wall Sentence 2: A man is sitting under a tree drinking a lemonade.

SOLUTION: There is a person scaling a wall.

PROBLEM: Sentence 1: Many people are waiting in line on a snowy hill, and some skis and snowboards lay abandoned. Sentence 2: people are waiting on the planet neptune

SOLUTION:
The people are on a snowy hill.