there have holes of <apostrophe><apostrophe> : air was .
(ROOT_0 (S_0 (ATS_3 (ATS_4 (S_1 (NP_0 (EX_0 there)) (VP_5 (VBP_0 have) (PP_2 (ATPP_0 (NP_4 (NNS_1 holes)) (IN_1 of)) (APOSTROPHE_0 <apostrophe><apostrophe>)))) (COLON_0 :)) (S_1 (NP_0 (NN_2 air)) (VP_5 (VBD_1 was)))) (DOT_0 .)))