arc(r_0001_0002__clears,r_0001_0001__Iraq,arg0).
arc(r_0001_0002__clears,r_0001_0003__visit,arg1).
arc(r_0001_0003__visit,r_0001_0005__Ohio_r_0001_0006__official,r_0001_0004__by).

( (IP-MAT (NP-SBJ;{IRAQ} (NPR Iraq;{Iraq}))
          (VBP;~Tn clears;{clear})
          (NP-OB1 (N visit;{visit})
                  (PP (P-ROLE by;{by})
                      (NP;{HALL} (NPR Ohio;{Ohio})
                                 (N official;{official})))))
  (ID 1_a_nyt20000410))