( ( Prevailing winds ) ( ( carry ( air ( toward ( the ( mountain range ) ) ) ) ) . ) )
(ROOT (S (NP (VBG Prevailing) (NNS winds)) (VP (VBP carry) (NP (NP (NN air)) (PP (IN toward) (NP (DT the) (NN mountain) (NN range))))) (. .)))
Prevailing winds carry air toward the mountain range.
(ROOT (S (NP (NN Chinook) (NNS winds)) (VP (VBP occur) (SBAR (WHADVP (WRB when)) (S (NP (NN air)) (VP (VBZ is) (VP (VBN forced) (PP (IN over) (NP (DT a) (NN mountain) (NN range)))))))) (. .)))