Roleset id: 01 , To centralize

Frame:

(VP
    (PV+PVSUFF_SUBJ:3MS أطلق)
    (NP-SBJ
      (NOUN+NSUFF_MASC_PL_NOM مجهولون))
    (NP-OBJ
      (NOUN+CASE_DEF_ACC صواريخ))
    (PP-DIR
      (PREP على)
      (NP
        (NP
          (DET+NOUN+NSUFF_FEM_SG+CASE_DEF_GEN المدينة))
        (SBAR
          (WHNP-1
            (REL_PRON التي))
          (S
            (VP
              (IV3MS+IV+IVSUFF_MOOD:I يتمركز)
              (PP-LOC
                (PREP في)
                (NP
                  (NP
                    (PRON_3FS ها))
                  (NP
                    (-NONE- *T*-1))))
              (NP-SBJ
                (NP
                  (NOUN_QUANT+CASE_DEF_NOM بضع)
                  (NP
                    (NOUN+NSUFF_FEM_PL+CASE_INDEF_GEN مئات)))
                (PP
                  (PREP من)
                  (NP
                    (DET+NOUN+NSUFF_FEM_PL+CASE_DEF_GEN القوات)
                    (DET+ADJ+NSUFF_FEM_SG+CASE_DEF_GEN الاميركية)
                    (DET+ADJ+NSUFF_FEM_SG+CASE_DEF_GEN الخاصة))))))))))
  (PUNC .))