arc(r_0143_0001__Is,r_0143_0003__it,arg0). arc(r_0143_0002__n_apos_t,r_0143_0001__Is,keep_scope).
( (CP-QUE-MAT (IP-SUB (BEP Is;{be}) (NEG;_clitic_ n<apos>t;{not}) (NP-SBJ (PRO it;{it}))) (PUNC ?)) (ID 143_a_ted_talk_11))