her <apostrophe>s down slithered downright by feathers always .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 her)) (VP_4 (ATVP_1 (VBZ_0 <apostrophe>s) (PRT_0 (RP_0 down))) (VP_1 (ATVP_2 (ATVP_0 (VBD_2 slithered) (ADVP_0 (RB_0 downright))) (PP_1 (IN_1 by) (NP_2 (NNS_1 feathers)))) (ADVP_0 (RB_0 always))))) (DOT_0 .)))