( ( materials ( for ( ( aqueous and ) ( hot ( corrosion environments ) ) ) ) ) ; )
(ROOT (NP (NP (NNS materials)) (PP (IN for) (NP (NP (NNS aqueous)) (CC and) (NP (JJ hot) (NN corrosion) (NNS environments)))) (: ;)))
materials for aqueous and hot corrosion environments;
(ROOT (S (NP (NP (JJ Gradual) (NN degradation)) (PP (IN of) (NP (NP (DT a) (NN material)) (ADJP (JJ due) (PP (TO to) (NP (NP (PRP$ its) (NN exposure)) (PP (TO to) (NP (DT the) (NN environment))))))))) (VP (VBZ is) (VP (VBN known) (PP (IN as) (NP (NN corrosion))))) (. .)))