48_a_lockdown
I think there was some sniggering .

%3 0048_0002__think think 0048_0001__I I 0048_0002__think->0048_0001__I [arg0] 0048_0004__was was 0048_0002__think->0048_0004__was [arg1] 0048_0005__some_0048_0006__sniggering some_sniggering 0048_0004__was->0048_0005__some_0048_0006__sniggering [arg0]
arc(r_0048_0002__think,r_0048_0001__I,arg0).
arc(r_0048_0002__think,r_0048_0004__was,arg1).
arc(r_0048_0004__was,r_0048_0005__some_r_0048_0006__sniggering,arg0).


IP-MAT NP-SBJ PRO I VBP;~Tf think CP-THT-OB1 IP-SUB EX there BED;~ex_V was NP-ESBJ D some N sniggering PUNC .
( (IP-MAT (NP-SBJ;{PERSON_D} (PRO I;{I}))
          (VBP;~Tf think;{think})
          (CP-THT-OB1 (IP-SUB (EX there;{there})
                              (BED;~ex_V was;{be})
                              (NP-ESBJ (D some;{some})
                                       (N sniggering;{sniggering}))))
          (PUNC .))
  (ID 48_a_lockdown;speaker=d))