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(ROOT_0 (S_0 (ATS_3 (NP_1 (DT_1 The) (NN_2 phrase)) (VP_4 (ATVP_1 (VBD_1 was) (RB_1 n<apostrophe>t)) (VP_1 (ATVP_4 (VBD_0 let) (RB_1 n<apostrophe>t)) (S_2 (ATS_0 (COMMA_0 ,) (PP_2 (IN_0 before) (NP_3 (NP_6 (ATNP_1 (DT_0 the) (JJ_1 long)) (NN_1 yawn)) (PP_0 (IN_1 of) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 only)) (NN_1 wall)))))) (VP_3 (VBD_0 stifled)))))) (DOT_0 .)))