( ( The student ) ( ( will ( name ( two ( wave types ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN student)) (VP (MD will) (VP (VB name) (NP (CD two) (NN wave) (NNS types)))) (. .)))
The student will name two wave types.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD two) (NNS types)) (PP (IN of) (NP (NN surface) (NNS waves))))) (. .)))