( ( For example ) ( , ( ( ( the wavelength ) ( of ( a ( water wave ) ) ) ) ( ( is ( ( the distance ) ( between ( adjacent ( wave crests ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (NN example))) (, ,) (NP (NP (DT the) (NN wavelength)) (PP (IN of) (NP (DT a) (NN water) (NN wave)))) (VP (VBZ is) (NP (NP (DT the) (NN distance)) (PP (IN between) (NP (JJ adjacent) (NN wave) (NNS crests))))) (. .)))
For example, the wavelength of a water wave is the distance between adjacent wave crests.
(ROOT (S (NP (NNP Wavelength)) (VP (VBZ is) (NP (NP (DT the) (NN distance)) (PP (IN between) (NP (NP (CD two) (JJ corresponding) (NNS points)) (PP (IN of) (NP (NP (JJ adjacent) (NNS waves)) (VP (VBN called)))))))) (. .)))
Wavelength is the distance between two corresponding points of adjacent waves called.