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(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (SBAR_0 (IN_2 with) (S_1 (NP_0 (DT_1 The)) (VP_5 (VB_0 be) (PRT_0 (RP_0 back))))) (COMMA_0 ,)) (NP_0 (PRP_1 he))) (VP_3 (ATVP_3 (VBD_0 knew) (NP_6 (ATNP_1 (ATNP_1 (DT_0 the) (JJ_1 skeletal)) (NN_0 arm)) (NN_1 sweater))) (PP_2 (ATPP_0 (NP_4 (NNS_1 songs)) (IN_1 with)) (NP_6 (ATNP_1 (DT_1 This) (NN_3 face-up)) (NN_1 guy))))) (DOT_0 .)))