(S (S (BASENP (NNP Discovery)) (VP (VP (VBD flew) (NP (NP (BASENP (NN 39) (NNS flights)) (PP (IN in) (BASENP (PRPD its) (JJ operational) (NN history)))) (PRN (COMMA ,) (PP (VBG including) (BASENP (DT the) (JJ current) (NN mission))) (COMMA ,)))) (S (VP (VP (VP (VP (VBG delivering) (BASENP (JJ several) (NNS payloads))) (PP (TO to) (BASENP (NN space)))) (PP (VBG including) (BASENP (DT the) (NNP Hubble) (NNP Space) (NNP Telescope)))) (CC and) (VP (VBG visiting) (NP (BASENP (NN two) (JJ different) (NN space) (NNS stations)) (COLON :) (NP (BASENP (NNP Mir)) (CC and) (BASENP (DT the) (NNP ISS))))))))) (PERIOD .))