(S (S (ADVP (RB However)) (S (NP (BASENP (NN analysis)) (PP (IN of) (BASENP (DT the) (JJ new) (NNS images)))) (VP (VBP show) (NP (NP (BASENP (NNS ridges)) (ADJP (NP (QP (ADVP (RB up) (TO to)) (NN 4)) (NNS kilometres)) (JJ tall))) (COMMA ,) (ADJP (ADJP (JJ similar) (PP (IN in) (BASENP (NN height)))) (PP (TO to) (NP (BASENP (DT the) (NNP Rocky) (NNPS Mountains)) (CC or) (BASENP (DT the) (NNPS Alps))))))))) (PERIOD .))