He <apostrophe>ll staying off who doing .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 He)) (VP_4 (MD_0 <apostrophe>ll) (VP_1 (ATVP_0 (VBG_0 staying) (PRT_0 (RP_0 off))) (SBAR_0 (WHNP_0 (WP_0 who)) (S_2 (VBG_0 doing)))))) (DOT_0 .)))