with Word classes , I leave really unmistakably and is the boy .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (PP_2 (IN_0 with) (NP_3 (NNP_1 Word) (NNS_1 classes))) (COMMA_0 ,)) (NP_0 (PRP_1 I))) (VP_3 (ATVP_1 (VP_5 (ATVP_4 (VB_0 leave) (NP_2 (RB_0 really))) (ADVP_0 (RB_0 unmistakably))) (CC_0 and)) (VP_5 (VBZ_0 is) (NP_2 (DT_0 the) (NN_2 boy))))) (DOT_0 .)))