our best to be Still sure was teaching by the big friend in one waist-high <apostrophe>s .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_0 (PRPDOLLAR_0 our) (JJS_0 best)) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 be) (ADJP_0 (RB_0 Still) (JJ_0 sure)))))) (VP_4 (VBD_1 was) (VP_2 (VBG_0 teaching) (PP_2 (IN_0 by) (NP_3 (NP_6 (ATNP_1 (DT_0 the) (JJ_1 big)) (NN_1 friend)) (PP_0 (IN_1 in) (NP_4 (ATNP_0 (CD_0 one) (JJ_1 waist-high)) (POS_0 <apostrophe>s)))))))) (DOT_0 .)))