(QT (DQL ``) (QTC (S (BASENP (DT A) (JJ Canadian) (NNP ISAF) (NN soldier)) (VP (ADVP (RB then)) (VP (VP (VBD opened) (BASENP (NN fire))) (PP (IN in) (NP (BASENP (DT a) (JJ defensive) (NN application)) (PP (IN of) (NP (BASENP (PRPD our) (NNS rules)) (PP (IN of) (BASENP (NN engagement)))))))))) (PERIOD .)) (DQR ''))