her <apostrophe>s waist-high Behind little stones .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 her)) (VP_4 (VBZ_0 <apostrophe>s) (ADJP_0 (JJ_1 waist-high) (PP_1 (IN_1 Behind) (NP_2 (JJ_1 little) (NNS_1 stones)))))) (DOT_0 .)))