He used to teach stand up the something of alpaca , of gravel before the pink knit .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 He)) (VP_4 (VBD_2 used) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 teach) (VP_2 (ATVP_4 (ATVP_3 (ATVP_2 (ATVP_0 (ATVP_0 (VB_0 stand) (PRT_0 (RP_0 up))) (NP_5 (DT_0 the) (NN_2 something))) (PP_1 (IN_1 of) (NP_2 (NN_3 alpaca)))) (COMMA_0 ,)) (PP_0 (IN_1 of) (NP_5 (NN_3 gravel)))) (PP_2 (IN_0 before) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 pink)) (NN_1 knit))))))))) (DOT_0 .)))