(QT (DQL ``) (QTC (S (BASENP (PRP We)) (VP (VBD reached) (NP (BASENP (DT the) (NN conclusion)) (SBAR (IN that) (S (BASENP (PRP they)) (VP (VP (VBD entered) (NP (BASENP (NNP Iran) (POS 's)) (BASENP (JJ territorial) (NNS waters)))) (PP (IN by) (BASENP (NN mistake))))))))) (PERIOD .)) (DQR ''))