( ( ( The Crust ) ( under ( the continents ) ) ) ( ( ( is quite ) ( ( ( a bit ) thicker ) ( than ( under ( the oceans ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN Crust)) (PP (IN under) (NP (DT the) (NN continents)))) (VP (VBZ is) (ADVP (RB quite)) (ADJP (NP (NP (DT a) (NN bit)) (JJR thicker)) (SBAR (IN than) (FRAG (PP (IN under) (NP (DT the) (NNS oceans))))))) (. .)))
The Crust under the continents is quite a bit thicker than under the oceans.
(ROOT (S (NP (NP (DT The) (NN creation) (CC and) (NN destruction)) (PP (IN of) (NP (JJ oceanic) (NN crust)))) (VP (VBZ is) (NP (DT the) (NN reason) (NN continents) (NN move))) (. .)))