(SINV (SINV (QT (DQL ``) (QTC (S (BASENP (DT The) (JJ only) (NN exit)) (VP (VBZ is) (VP (VBN blocked) (COMMA ,) (PP (ADVP (RB probably)) (PP (IN by) (NP (BASENP (DT a) (NN fall)) (PP (IN of) (BASENP (NN ground))))))))) (COMMA ,)) (DQR '')) (SINV (VP (VBD said)) (BASENP (NNP Seshoka)))) (PERIOD .))