Fries...the mystery food?

I don't know what is going on with Kylie and her food lately! She is cracking me up!

Eating dinner as a family. I pick up an extremely LONG french fry.

Me:"Look at this french fry! That was a huge potato!"
Pauses with a french fry on it's way into her mouth...
Kylie: "French fries are potatoes!?"
(she doesn't like potatoes)