Is this a hall?
Yes, it's a hall.
Is this a living room?
Yes, it's a living room.
What room is this?
This is a bedroom.
Is this a garden?
No, it's a kitchen
Is this a bedroom?
No, it's not a bedroom, it's a bathroom.
What's this?
That's basement
Is this bathroom?
No, it's not a bathroom, it's a dining room.