Is the chair under the table?
No, it's not
Is the ball under the table?
Yes, it is.
Where is the tennis racket?
It's under the bed
Is the cushion on the chair?
Yes, it is.
Where is the dog?
It's on the box.
Where is the computer?
It's on the desk
Where is the guitar?
It's behind the chair / It's by the desk
Where is the dog?
It's behind the box.
Where is the dog?
It's in front of the box.
Where is the dog?
It's in the box.
Where is the bike?
It's by the desk
Where is the dog?
It's under the box.