(PP-ADV 
  (P 在)
                    
  (IP 
    (NP-PN-SBJ 
      (NR 美国))
                    
    (VP 
      (VV 履行)
                    
      (AS 了)
                    
      (NP-OBJ 
        (CP-APP 
          (IP 
            (NP-SBJ 
              (-NONE- *PRO*))
                    
            (VP 
              (PP 
                (P 与)
                    
                (NP-PN 
                  (NR 台湾)))
                    
              (VP 
                (PU “)
                    
                (VV 断交)
                    
                (PU 、)
                    
                (VV 废约)
                    
                (PU 、)
                    
                (VV 撤军)
                    
                (PU ”))))
                    
          (DEC 的))
                    
        (NP 
          (NN 承诺))))))
arg0: 
                    *PRO* 	  
                
arg0: 
                    与 台湾