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.

[EX Q]: Sentence 1: Man in a black shirt walking down a large set of stairs. Sentence 2: A man in a white shirt is walking up the stairs.
[EX A]: A person in black is moving around

[EX Q]: Sentence 1: A group of young volleyball players celebrate on the court. Sentence 2: A group of young basketball players celebrate on the court.
[EX A]: People celebrating a on volleyball court.

[EX Q]: Sentence 1: Chinese boy standing on a street corner. Sentence 2: A girl crossing the street.
[EX A]:
A boy is standing on the corner.