( ( The heights ) ( ( will ( sink ( and ( ( the deeps ) ( will rise ) ) ) ) ) ; ) )
(ROOT (S (NP (DT The) (NNS heights)) (VP (MD will) (VP (VB sink) (PRN (CC and) (S (NP (DT the) (NNS deeps)) (VP (MD will) (VP (VB rise))))))) (: ;)))
The heights will sink and the deeps will rise;
(ROOT (S (NP (NNS Rises)) (ADVP (RB then)) (VP (ADVP (RB sinks)) (VBZ does) (NP (NP (JJR deeper) (NN material) (NN cause) (NN convection)) (PP (IN in) (NP (DT the) (NN mantle))))) (. .)))