just his lunch discovered a class at the fit .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ADVP_0 (RB_0 just)) (NP_0 (PRPDOLLAR_0 his) (NN_0 lunch))) (VP_3 (VBD_0 discovered) (NP_3 (NP_5 (DT_0 a) (NN_2 class)) (PP_0 (IN_1 at) (NP_5 (DT_0 the) (NN_2 fit)))))) (DOT_0 .)))