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 man gets ready to hit the tennis ball. Sentence 2: The man is getting ready to serve a volleyball.

SOLUTION: A man is playing tennis.

PROBLEM: Sentence 1: A man is waiting to go in the booth. Sentence 2: A woman sits in a booth.

SOLUTION: A person is near a booth.

PROBLEM: Sentence 1: Children are practicing judo on red and white mats. Sentence 2: Kids practice fencing on red and white mats.

SOLUTION:
Kids practice a martial art on padded flooring.