since gravel should just captivated no Her pale <apostrophe>s as <apostrophe><apostrophe> .
(ROOT_0 (S_0 (ATS_3 (NP_1 (IN_2 since) (NN_3 gravel)) (VP_4 (ATVP_1 (MD_0 should) (ADVP_0 (RB_0 just))) (VP_5 (VBD_2 captivated) (PP_2 (ATPP_0 (ADVP_0 (RB_1 no) (NP_4 (ATNP_0 (PRPDOLLAR_0 Her) (JJ_0 pale)) (POS_0 <apostrophe>s))) (IN_2 as)) (APOSTROPHE_0 <apostrophe><apostrophe>))))) (DOT_0 .)))