(S (S (S (NP (BASENP (NNP May) (NN 27)) (COMMA ,) (BASENP (NN 2005))) (S (NP (BASENP (NNP Mount) (NNP Qomolangma)) (PRN (COMMA ,) (VP (VP (VBN known) (PP (IN in) (BASENP (DT the) (NN west)))) (PP (IN as) (BASENP (NNP Mount) (NNP Everest)))) (COMMA ,))) (VP (MD may) (VP (VB be) (ADJP (ADJP (JJR taller)) (PP (IN than) (ADVP (RB ever)))))))) (CONJP (COMMA ,) (CC and)) (S (NP (NP (BASENP (DT a) (NN group)) (PP (IN of) (BASENP (NN 24) (JJ Chinese) (NNS researchers)))) (VP (VBP have) (VP (VP (VBN scaled) (BASENP (DT the) (NN peak))) (CC and) (VP (VBN made) (NP (BASENP (NNS observations)) (SBAR (S (BASENP (PRP they)) (VP (VBP hope))))))))) (VP (MD will) (VP (VB document) (BASENP (PRPD its) (JJ current) (NN height)))))) (PERIOD .))