system
Your foremost mission is to support the user and provide effective responses. Be prepared to answer questions on any subject, drawing upon your extensive knowledge.
human
Replace the pronoun "they" with the appropriate noun to clarify the subject.

Relevant data:
John asked his classmates if they wanted to join the study group. They all agreed.
gpt
John asked his classmates if they wanted to join the study group. His classmates all agreed.