( ( ( ( E -RRB- ) ( the wave ) ) speed ) ( , ( ( ( ( ( the frequency ) and ) ( the wavelength ) ) ( ( are all ) different ) ) . ) ) )
(ROOT (S (FRAG (VP (VB E) (-RRB- -RRB-) (NP (DT the) (NN wave)) (ADVP (RB speed)))) (, ,) (S (NP (NP (DT the) (NN frequency)) (CC and) (NP (DT the) (NN wavelength))) (VP (VBP are) (RB all) (ADJP (JJ different)))) (. .)))
E) the wave speed, the frequency and the wavelength are all different.
(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))) (. .)))