(IP 
  (NP-SBJ 
    (PN 他))
                    
  (VP 
    (ADVP 
      (AD 还))
                    
    (VP 
      (VV 呼吁)
                    
      (IP-OBJ 
        (NP-SBJ 
          (DP 
            (DT 各))
                    
          (NP 
            (NN 国)))
                    
        (VP 
          (VP 
            (VCD 
              (VV 团结)
                    
              (VV 一致)))
                    
          (VP 
            (VV 对付)
                    
            (NP-OBJ 
              (NN 外债)
                    
              (PU 、)
                    
              (NN 贩毒)
                    
              (CC 以及)
                    
              (NN 暴力)
                    
              (NN 活动))))))))
arg0: 
                    各 国 
                
arg1: 
                    外债 、 贩毒 以及 暴力 活动