( ( The wavelength ) ( ( is ( ( the distance ) ( between ( ( two ( successive peaks ) ) ( on ( the wave ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN wavelength)) (VP (VBZ is) (NP (NP (DT the) (NN distance)) (PP (IN between) (NP (NP (CD two) (JJ successive) (NNS peaks)) (PP (IN on) (NP (DT the) (NN wave))))))) (. .)))
The wavelength is the distance between two successive peaks on the wave.
(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.