Is it a bag?
Yes, it is.
Is it a bag?
No, it isn't.
Is it a chair?
No, it isn't.
Is it a board?
No, it isn't.
Is it a crayon?
Yes, it is.
Is it a crayon?
No, it isn't.
Is it a pen?
Yes, it is.
Is it a book?
Yes, it is.
What is it?
It's a crayon.
What is it?
It's a pen.
What is it?
It's a book.
What is it?
It's a bag.