Is there a table?
Yes, there is.
Is there a door?
No, there is not.
Is there a table?
No, there is not.
Is it a blackboard?
Yes, it is.
Is there a door?
Yes, there is.
Are there telephones?
No, there are not.
What is it?
It is a fan.
Are there speakers?
Yes, there are.
Is there a television?
Yes, there is.
What is it?
It is a whiteboard.
What is it?
It is a trash can.