(SINV (SINV (QT (DQL ``) (QTC (S (BASENP (DT The) (NN confirmation)) (VP (VBZ is) (VP (VBN based) (PP (IN upon) (BASENP (JJ multiple) (NN intelligence) (NNS sources)))))) (COMMA ,)) (DQR '')) (SINV (VP (VBD said)) (BASENP (NNP Ahmed)))) (PERIOD .))