The ol' Bait and Switch

Eva:   Mom, I want yurt.

Me:   What?

Eva:   Mom, I want yurt! Have some yurt! I want some yurt!

Me:   I don't know what you're saying, sweetie.

Eva:   I want some yurt!

Me:   Do you mean you want some yogurt?

Eva:   Yes! Yurt!

Me:   Okay, I'll give you some yogurt.

Eva:   No, I want pizzsa.