(S (PP (VBG According) (PP (TO to) (BASENP (NNP Jackson)))) (COMMA ,) (QT (DQL ``) (QTC (S (BASENP (PRP We)) (VP (ADVP (RB just)) (VP (VBD reached) (NP (BASENP (DT a) (NN point)) (SBAR (WHADVP (WRB where)) (S (BASENP (PRP it)) (VP (VBD was) (VP (VBG going) (S (VP (TO to) (VP (VP (VB be) (ADJP (JJ difficult))) (SBAR (IN for) (S (BASENP (PRP him)) (VP (TO to) (VP (VP (VB go) (PRT (RP on))) (PP (IN without) (BASENP (NN pain)))))))))))))))))) (PERIOD .)) (DQR '')))