You saw sitting Noah <apostrophe>s of <apostrophe><apostrophe> .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 You)) (VP_4 (VBD_1 saw) (VP_2 (VBG_0 sitting) (PP_2 (ATPP_0 (NP_4 (NNP_0 Noah) (POS_0 <apostrophe>s)) (IN_1 of)) (APOSTROPHE_0 <apostrophe><apostrophe>))))) (DOT_0 .)))