It knew brown . it forced teaching queasy .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (ATS_3 (NP_1 (PRP_0 It)) (VP_4 (VBD_1 knew) (ADJP_0 (JJ_0 brown)))) (DOT_0 .)) (NP_0 (PRP_1 it))) (VP_3 (VBD_1 forced) (VP_2 (VBG_0 teaching) (ADVP_0 (RB_0 queasy))))) (DOT_0 .)))