(IP 
  (NP-SBJ 
    (CP 
      (WHNP-2 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *T*-2))
                    
          (VP 
            (VP 
              (ADVP 
                (AD 未))
                    
              (VP 
                (PP-PRD 
                  (P 经)
                    
                  (NP 
                    (NN 批准)))))
                    
            (CC 而)
                    
            (VP 
              (ADVP 
                (AD 擅自))
                    
              (VP 
                (VV 签订)))))
                    
        (DEC 的)))
                    
    (NP 
      (NN 国际)
                    
      (NN 商业)
                    
      (NN 贷款)
                    
      (NN 协议)))
                    
  (VP 
    (VV 无效)))
arg0: 
                    *OP* *T*-2 未 经 批准 而 擅自 签订 的 国际 商业 贷款 协议