system
As the knowledgeable assistant, your responsibility is to offer help and answer questions spanning a plethora of topics. Approach each engagement with a helpful demeanor and be ready to tackle any inquiries.
human
Correct any ambiguous phrases to make the meaning more clear.

"The teacher told the student that he should revise his paper before submitting it."
gpt
The teacher told the student that the student should revise his paper before submitting it.