( ( ( land , ) ( ( ( water , ) and ) air ) ) . )
(ROOT (NP (NP (NN land)) (, ,) (NP (NP (NN water)) (, ,) (CC and) (NP (NN air))) (. .)))
land, water, and air.
(ROOT (S (NP (DT The) (NN water) (NN cycle)) (VP (VBZ involves) (NP (NP (NN movement)) (PP (IN of) (NP (NP (NN water)) (PP (IN between) (NP (NN air) (CC and) (NN land))))))) (. .)))