(S (S (S (NP (BASENP (JJS Most)) (PP (IN of) (NP (BASENP (DT the) (NNS drugs)) (VP (VBN taken))))) (VP (VBD was) (BASENP (NN marijuana)))) (SBAR (IN while) (S (BASENP (NN fourteen)) (VP (VBD tested) (ADJP (JJ positive) (PP (IN for) (QT (DQL ``) (BASENP (NN P)) (DQR '')))))))) (PERIOD .))