(S (S (QTL (DQL ``) (S (VP (ADVP (RB Microbiologically)) (VBG speaking)))) (VP (PRN (QTR (COMMA ,) (DQR '')) (S (BASENP (PRP she)) (VP (VBD said))) (COMMA ,)) (QTL (DQL ``) (S (BASENP (NN tap) (NN water)) (VP (VBZ is) (ADJP (JJR purer) (PP (IN than) (NP (BASENP (JJ bottled) (NN water)) (PRN (COLON --) (BASENP (JJS most) (JJ bottled) (NN water))))))))))) (PERIOD .))