( ( ( The ( Earth 's ) ) crust ) ( ( is ( ( ( roughly ( ( 5 to ) 10 ) ) kilometers ) ( thick ( beneath ( the oceans ) ) ) ) ) ; ) )
(ROOT (S (NP (NP (DT The) (NN Earth) (POS 's)) (NN crust)) (VP (VBZ is) (NP (NP (QP (RB roughly) (CD 5) (TO to) (CD 10)) (NNS kilometers)) (ADJP (JJ thick) (PP (IN beneath) (NP (DT the) (NNS oceans)))))) (: ;)))
The Earth's crust is roughly 5 to 10 kilometers thick beneath the oceans;
(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))) (. .)))