to teach , , , But the alpaca friends howled when to have kids of a skeletal eyes , feathers , forced .
(ROOT_0 (S_0 (ATS_3 (ATS_4 (ATS_0 (ATS_0 (ATS_0 (S_1 (VP_0 (TO_0 to) (VP_1 (VB_0 teach)))) (COMMA_0 ,)) (COMMA_0 ,)) (COMMA_0 ,)) (CC_0 But)) (S_1 (NP_1 (ATNP_0 (DT_0 the) (NN_3 alpaca)) (NNS_0 friends)) (VP_5 (VBD_1 howled) (SBAR_0 (WHADVP_0 (WRB_0 when)) (S_1 (ATS_1 (S_2 (VP_0 (TO_0 to) (VP_1 (ATVP_2 (VB_0 have) (NP_4 (NNS_1 kids))) (PP_1 (IN_1 of) (NP_2 (ATNP_2 (ATNP_2 (ATNP_1 (DT_0 a) (JJ_1 skeletal)) (NNS_0 eyes)) (COMMA_0 ,)) (NNS_1 feathers)))))) (COMMA_0 ,)) (VP_3 (VBD_0 forced))))))) (DOT_0 .)))