as his arm saw going , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (SBAR_0 (IN_2 as) (S_1 (NP_0 (PRPDOLLAR_0 his) (NN_0 arm)) (VP_5 (VBD_2 saw) (S_2 (VBG_0 going))))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))