the best friend blackened to teach lucky .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_1 (DT_0 the) (JJS_0 best)) (NN_0 friend)) (VP_4 (VBN_0 blackened) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 teach) (ADJP_0 (JJ_0 lucky))))))) (DOT_0 .)))