Two people riding, they stopped by a tree They picked up a passenger, and then there were three. Three people riding, they stopped by a store They picked up a passenger, and then there were four. Four people riding, happy and alive, They picked up a passenger, and then there were five. And then it runs right back. Now its going back.
Child goes back, etc.
Everywhere it goes. Children move around the room at random. Now is going back. Now the bell is ringing. Now the whistle blows.