( (IP-MAT (NP-SBJ (PRO They)) (MD $could) (NEG $n't) (VB believe) (CP-THAT (C 0) (IP-SUB (NP-SBJ (PRO we)) (VBD saw) (NP-OB1 (D a) (BREAK 0)))) (. ...)))
( (IP-MAT (NP-SBJ (PRO It)) (BEP is) (NP-OB1 (D a) (N trifle) (NP-PRN-ELAB (D a) (ADJ mere) (N trifle))) (. .)))
( (IP-MAT (FS (IP-MAT (NP-SBJ (PRO I)) (DOD $did) (NEG $n't) (VB know))) (, -) (FS (IP-MAT (NP-SBJ (CP-FRL (WNP-1 (WPRO what)) (C 0) (IP-SUB (NP-SBJ (PRO I)) (VBP mean) (IP-INF (NP-ACC *T*-1) (TO to) (VB say))))) (BEP is))) (NP-SBJ (PRO I)) (BEP am) (ADJP (ADV very) (ADJ sorry) (IP-INF (TO to) (VB hear) (PP (P of) (NP (PRO$ your) (N loss))))) (. .)))
( (IP-MAT (NP-SBJ (PRO It)) (BEP is) (NP-OB1 (D a) (N trifle) (REP (NP (D a) (N trifle)))) (. .)))
( (IP-MAT (NP-SBJ-1 (EX There)) (HVP have) (BEN been) (NP=1 (NS riots)) (PP (P in) (NP (NPR Calabria)) (CP-QUE-TAG (IP-SUB (HVP $have) (NEG $n't) (NP-SBJ (EX there)))) (? .)))