(S (S (BASENP (DT The) (NN train)) (VP (VP (ADVP (RB then)) (VP (ADVP (RB partially)) (VBD derailed))) (CC but) (VP (VP (VBD remained) (ADJP (JJ upright))) (COMMA ,) (S (VP (VP (VBG coming) (PP (TO to) (BASENP (DT a) (NN stop)))) (PP (ADVP (RB further)) (PP (IN down) (BASENP (DT the) (NNS tracks))))))))) (PERIOD .))