(QT (DQL ``) (QTC (S (S (BASENP (PRP It)) (VP (VP (VBZ is) (VP (VBN known))) (SBAR (IN that) (S (NP (BASENP (DT all) (JJ other) (NNS participants)) (PP (IN of) (BASENP (DT the) (NNP Middle) (NNP East) (NN quartet)))) (VP (VP (VBP are) (ADVP (RB also))) (PP (IN in) (NP (NP (BASENP (DT some) (NN sort)) (PP (IN of) (BASENP (NN contact)))) (PP (IN with) (BASENP (NNP Hamas) (NN leadership)))))))))) (COMMA ,) (SBAR (IN although) (S (PP (IN for) (BASENP (NN some) (JJ unknown) (NN reason))) (S (BASENP (PRP they)) (VP (VBP are) (ADJP (JJ shy) (S (VP (TO to) (VP (ADVP (RB publicly)) (VP (VB admit) (BASENP (PRP it)))))))))))) (PERIOD .)) (DQR ''))