( ( Oceanic crust ) ( ( ( is typically ) ( ( 5 kilometers ) thick ) ) . ) )
(ROOT (S (NP (NNP Oceanic) (NNP crust)) (VP (VBZ is) (ADVP (RB typically)) (ADJP (NP (CD 5) (NNS kilometers)) (JJ thick))) (. .)))
Oceanic crust is typically 5 kilometers thick.
(ROOT (S (NP (NP (NP (DT The) (NN earth) (POS 's)) (JJ continental) (NN crust)) (, ,) (PP (IN on) (NP (NN average))) (, ,)) (VP (VBZ is) (ADJP (NP (CD 35) (NNS kilometers)) (JJ thick))) (. .)))