Is this a green book?
No,it isn't.
Is this an orange ruler?
No,it isn't.
Is this a blue pen?
Yes,it is.
Is this a window?
Yes, it is.
Is this a brown chair?
Yes,it is.
Is this a door?
Yes,it is.
Is this a pink rubber?
Yes,it is.
Is this a black table?
No, it isn't.