(S (S (S (BASENP (DT The) (NN pancreas)) (VP (VP (VBZ continues) (BASENP (NN insulin) (NN production))) (CC but) (VP (VBZ fails) (S (VP (TO to) (VP (VB prevent) (NP (BASENP (NNS increases)) (PP (IN in) (BASENP (NN glucose) (NNS levels)))))))))) (COLON ;) (S (PP (IN in) (BASENP (JJ other) (NNS words))) (COMMA ,) (S (BASENP (DT the) (NN body)) (VP (VBZ becomes) (ADJP (JJ unable) (S (VP (TO to) (VP (VP (VB respond) (PP (TO to) (BASENP (DT the) (NN insulin)))) (ADVP (RB properly)))))))))) (PERIOD .))