(S (S (NP (BASENP (JJ Canadian) (NNS researchers)) (PP (IN from) (BASENP (NNP C-crest) (NNPS Laboratories)))) (VP (VBP have) (VP (VP (VBN discovered) (NP (NP (DT an) (NP (QT (DQL ``) (ADJP (RB unusually) (JJ high)) (DQR '')) (NN amount))) (PP (IN of) (BASENP (NNS bacteria))))) (PP (IN in) (BASENP (JJ bottled) (NN water)))))) (PERIOD .))