Is there a carpet in the room?
Yes, there is.
Is there a window in the room?
Yes, there is.
Are there two tables in the room?
No, there aren't.
Are there three armchairs in the room?
Yes, there are.
Is there a sofa in the room?
No, there isn't.
Is there a lamp in the room?
Yes, there is.
Is there a bookcase in the room?
No, there isn't.
Are there paintings in the room?
No, there aren't.