so off the air the road , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (PP_2 (ATPP_0 (ATPP_0 (RB_1 so) (IN_1 off)) (NP_5 (DT_0 the) (NN_2 air))) (NP_5 (DT_0 the) (NN_2 road))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))