`` than the big city <apostrophe><apostrophe> it discovered slept .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (ATS_0 (TICK_0 ``) (PP_2 (IN_0 than) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 big)) (NN_1 city)))) (APOSTROPHE_0 <apostrophe><apostrophe>)) (NP_0 (PRP_1 it))) (VP_3 (VBD_0 discovered) (NP_3 (NNP_1 slept)))) (DOT_0 .)))