as conference was finger . <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (ATS_3 (NP_1 (IN_2 as) (NN_3 conference)) (VP_4 (VBD_1 was) (NP_2 (NN_3 finger)))) (DOT_0 .)) (APOSTROPHE_0 <apostrophe><apostrophe>)))