if position be the waist-high and <apostrophe>s maybe .
(ROOT_0 (S_0 (ATS_3 (NP_1 (IN_2 if) (NN_3 position)) (VP_4 (ATVP_2 (VB_0 be) (NP_4 (ATNP_0 (ATNP_2 (DT_0 the) (JJ_1 waist-high)) (CC_0 and)) (POS_0 <apostrophe>s))) (ADVP_0 (RB_0 maybe)))) (DOT_0 .)))