( ( For ( a ( car ( to move ) ) ) ) ( , ( ( the wheels ) ( ( have ( to ( turn ( in ( a ( rotary motion ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (DT a) (NN car) (S (VP (TO to) (VP (VB move)))))) (, ,) (NP (DT the) (NNS wheels)) (VP (VBP have) (S (VP (TO to) (VP (VB turn) (PP (IN in) (NP (DT a) (JJ rotary) (NN motion))))))) (. .)))
For a car to move, the wheels have to turn in a rotary motion.
(ROOT (S (NP (DT The) (NN turning) (NN driveshaft)) (VP (VBZ causes) (NP (NP (DT the) (NNS wheels)) (PP (IN of) (NP (DT the) (NN car) (S (VP (TO to) (VP (VB turn)))))))) (. .)))
The turning driveshaft causes the wheels of the car to turn.