instruction:
In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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.
question:
Sentence 1: A person is rock climbing between two large rock faces. Sentence 2: A person rock climbing with others on two large rock faces.
answer:
There is at least one person.


question:
Sentence 1: A young man in a Nike t-shirt is eating cake. Sentence 2: A boy celebrates his birthday.
answer:
A boy eating.


question:
Sentence 1: Two ballerinas wearing red and performing on stage. Sentence 2: There is a song playing.
answer:

Two people are on stage.