Five enormous dinosaurs, letting out a roar---
One went away, and then there were four.
Four enormous dinosaurs, crashing down a tree---
One went away, and then there were three.
Three enormous dinosaurs, eating tiger stew---
One went away, and then there were two.
Two enormous dinosaurs, try to run---
One ran away, and then there was one.
One enormous dinosaur, afraid to be a hero---
He went away, and then there was zero.

See also: Five_Enormous_Dinosaurs and Dancing_dinosaurs