( ( Prevailing winds ) ( ( affect ( ( the climate ) ( of ( an area ) ) ) ) . ) )
(ROOT (S (NP (VBG Prevailing) (NNS winds)) (VP (VBP affect) (NP (NP (DT the) (NN climate)) (PP (IN of) (NP (DT an) (NN area))))) (. .)))
Prevailing winds affect the climate of an area.
(ROOT (S (NP (VBG Prevailing) (NNS winds)) (VP (VBP influence) (NP (NN climate))) (. .)))