(IP-OBJ 
  (NP-SBJ 
    (CP 
      (WHNP-1 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-PN-SBJ 
            (NR 爱尔兰)
                    
            (NN 共和军))
                    
          (VP 
            (VV 宣布)
                    
            (NP-OBJ 
              (-NONE- *T*-1))))
                    
        (DEC 的)))
                    
    (NP 
      (NN 停火)))
                    
  (PU ，)
                    
  (VP 
    (PP-PRP 
      (P 为)
                    
      (NP 
        (DNP 
          (NP 
            (NP-PN 
              (NR 北爱尔兰))
                    
            (NP 
              (NN 问题)))
                    
          (DEG 的))
                    
        (NP 
          (PU “)
                    
          (CP 
            (WHNP-2 
              (-NONE- *OP*))
                    
            (CP 
              (IP 
                (NP-SBJ 
                  (-NONE- *T*-2))
                    
                (VP 
                  (VA 公正)
                    
                  (CC 和)
                    
                  (VA 永久)))
                    
              (DEC 的)))
                    
          (NP 
            (NN 解决))
                    
          (PU ”))))
                    
    (VP 
      (VV 提供)
                    
      (AS 了)
                    
      (NP-OBJ 
        (NN 机会)))))
arg0: 
                    *T*-2