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Helicopters are more used than they were formerly , bombing planes have been largely superseded by self-propelled projectiles , and the fragile movable battleship has given way to the almost unsinkable Floating Fortress ; but otherwise there has been little development . gold

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(SENTENCE
  (CLAUSE
    (CORE
      (NP (CORE_N (NUC_N (N 0=Helicopters))))
      (NUC
        (AUX-TNS 1=are)
        (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 2=more))))
        (V-PART 3=used))
      (ADVP-PERI
        (CORE_ADV
          (NUC_ADV (ADV 4=than))
          (CLAUSE
            (CORE
              (NP (PRO 5=they))
              (NUC (AUX-TNS 6=were))
              (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 7=formerly)))))))))
    (, 8=,))
  (CLAUSE
    (CORE
      (NP (CORE_N (NUC_N (N 9=bombing) (N 10=planes))))
      (NUC
        (AUX-ASP 12=been)
        (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 13=largely))))
        (V 14=superseded))
      (PP
        (P 15=by)
        (NP
          (CORE_N (AP-PERI (CORE_A (NUC_A (A 16=self-propelled)))) (NUC_N (N 17=projectiles))))))
    (OP-TNS 11=have)
    (, 18=,))
  (CLAUSE
    (CLM 19=and)
    (CORE
      (NP
        (OP-DEF 20=the)
        (CORE_N
          (AP-PERI (CORE_A (NUC_A (A 21=fragile))))
          (AP-PERI (CORE_A (NUC_A (A 22=movable))))
          (NUC_N (N 23=battleship))))
      (NUC (V 25=given) (N 26=way))
      (PP
        (P 27=to)
        (NP
          (OP-DEF 28=the)
          (CORE_N
            (AP-PERI
              (CORE_A
                (NUC_A
                  (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 29=almost))))
                  (A 30=unsinkable))))
            (NUC_N (N-PROP 31=Floating) (N-PROP 32=Fortress))))))
    (OP-TNS 24=has)
    (. 33=;))
  (CLAUSE
    (CLM 34=but)
    (CORE
      (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 35=otherwise))))
      (NP (PRO-DEM 36=there))
      (NUC (V 38=been))
      (NP (CORE_N (NUC_N (AP-PERI (CORE_A (NUC_A (A 39=little)))) (N 40=development)))))
    (OP-TNS 37=has))
  (. 41=.))