( ( ( Speed , ) ( ( ( Frequency and ) Wavelength ) ( in ( Light Waves ) ) ) ) . )
(ROOT (NP (NP (NN Speed)) (, ,) (NP (NP (NNP Frequency) (CC and) (NNP Wavelength)) (PP (IN in) (NP (NNP Light) (NNPS Waves)))) (. .)))
Speed, Frequency and Wavelength in Light Waves.
(ROOT (S (NP (NP (DT The) (NN product)) (PP (IN of) (NP (NP (NP (DT a) (NN wave) (POS 's)) (NN wavelength)) (CC and) (NP (PRP$ its) (NN frequency))))) (VP (VBZ is) (NP (PRP$ its) (NN speed))) (. .)))