What is it?
It's a house.
What is it?
Stairs/ Upstairs.
What is it?
Stairs/ downstairs.
What is it?
It's a balcony.
What is it?
It's a door.
What is it?
It's a lift.
What is it?
It's a garden.
What is it?
It's a basement.
What is it?
It's a floor.