we forced spit on a boiled cross Behind a low yawn .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 we)) (VP_4 (VBD_2 forced) (S_2 (VP_0 (ATVP_4 (VBD_2 spit) (PP_2 (IN_0 on) (NP_6 (ATNP_1 (DT_0 a) (JJ_1 boiled)) (NN_1 cross)))) (PP_2 (IN_0 Behind) (NP_6 (ATNP_1 (DT_0 a) (JJ_1 low)) (NN_1 yawn))))))) (DOT_0 .)))