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(ROOT_0 (S_0 (ATS_2 (SBAR_0 (WHADVP_0 (WRB_0 When)) (S_1 (NP_0 (DT_1 The) (NN_2 group)) (VP_5 (VBP_0 guess) (PP_2 (IN_0 on) (NP_3 (ATNP_0 (NP_0 (DT_0 the) (NN_2 luggage)) (COMMA_0 ,)) (NP_5 (DT_0 the) (NN_2 hat))))))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))