........................ a square?
Is it a square? Yes, it is.
.................... a triangle?
Is it a triangle? Yes, it is.
....................... a triangle?
Is it a triangle? No, it isn't.
....................... a circle?
Is it a circle? No, it isn't.
Is it a circle?
Yes, it is.
......................... a rectangle?
Is it a rectangle? Yes, it is.