Welcome to your interview.
The question is on your right: ORM and Joins Concepts. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
What is an ORM, what are joins, and what is the difference between set and tuple?