( ( ( ( ( ( The distance ) ( between ( any ( two waves ) ) ) ) ( is ( called ( the wavelength ) ) ) ) and ) ( ( ( the ( time interval ) ) ( between ( waves passing ) ) ) ( is ( called ( the frequency ) ) ) ) ) . )
(ROOT (S (S (NP (NP (DT The) (NN distance)) (PP (IN between) (NP (DT any) (CD two) (NNS waves)))) (VP (VBZ is) (VP (VBN called) (NP (DT the) (NN wavelength))))) (CC and) (S (NP (NP (DT the) (NN time) (NN interval)) (PP (IN between) (NP (NP (NNS waves)) (VP (VBG passing))))) (VP (VBZ is) (VP (VBN called) (NP (DT the) (NN frequency))))) (. .)))
The distance between any two waves is called the wavelength and the time interval between waves passing is called the frequency .
(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.