then all doing the beak warily could were pale or maybe was .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ADVP_0 (RB_0 then)) (NP_0 (DT_1 all))) (VP_3 (ATVP_1 (ATVP_4 (VBG_0 doing) (NP_5 (DT_0 the) (NN_2 beak))) (ADVP_0 (RB_0 warily))) (VP_5 (MD_0 could) (VP_1 (ATVP_1 (VP_5 (VBD_0 were) (ADJP_0 (JJ_0 pale))) (CC_0 or)) (VP_1 (ADVP_0 (RB_0 maybe)) (VBD_1 was)))))) (DOT_0 .)))