arc(r_0154_0001__Do,r_0154_0003__they,arg0). arc(r_0154_0002__n_apos_t,r_0154_0001__Do,keep_scope).
( (CP-QUE-MAT (IP-SUB (DOP Do;{do}) (NEG;_clitic_ n<apos>t;{not}) (NP-SBJ;{PROFESSORS} (PRO they;{they}))) (PUNC ?)) (ID 154_a_ted_talk_11))