The toy car's tires rub against the floor, causing the friction that slows it down.
(The toy car's tires; rub; against the floor) (The toy car's tires; causing; the friction that slows it down) (the friction; slows down; it)
The toy car's tires The toy car's tires the friction
rub causing slows down
against the floor
the friction that slows it down
it