(IP 
  (NP-SBJ 
    (DP 
      (DT 此)
                    
      (QP 
        (CD 一)))
                    
    (CP 
      (WHNP-2 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *T*-2))
                    
          (VP 
            (VV 看似)
                    
            (IP-OBJ 
              (NP-SBJ 
                (-NONE- *PRO*))
                    
              (VP 
                (PU 「)
                    
                (VCD 
                  (VV 除旧)
                    
                  (VV 更新))
                    
                (PU 」)))))
                    
        (DEC 的)))
                    
    (NP 
      (NN 政策)))
                    
  (PU ，)
                    
  (VP 
    (ADVP 
      (AD 却))
                    
    (VP 
      (VV 让)
                    
      (NP-OBJ 
        (NN 居民))
                    
      (IP 
        (NP-SBJ 
          (-NONE- *PRO*))
                    
        (VP 
          (VP 
            (VV 得不偿失))
                    
          (PU ，)
                    
          (VP 
            (VP-FOC 
              (VV 後悔))
                    
            (VP 
              (VV 不已))))))))
arg0: 
                    *PRO* 
                
arg1: 
                    後悔