Hazel and Sam are sitting in the hallway looking at a book:
Hazel: The dinosaurs all died
Sam: Why?
Hazel: Because a big rock came and it got colder and colder and colder and colder and the dinosaurs didn’t like the cold.
Sam: Why?
Hazel: Because a big rock came and it got colder and . . .
Sam: Why?
{Pause as they flip through some pages}
Hazel: Which one is your favorite?
Sam: {non-intelligible answer}
Hazel: This one is a meat eater . . . let’s go to your room.