(IP-OBJ 
  (NP-SBJ 
    (-NONE- *PRO*))
                    
  (VP 
    (VV 让)
                    
    (NP-OBJ 
      (NN 当局))
                    
    (IP 
      (NP-SBJ 
        (-NONE- *PRO*))
                    
      (VP 
        (VP 
          (VV 得以)
                    
          (VP 
            (PP-DIR 
              (P 对)
                    
              (NP 
                (CP 
                  (WHNP-1 
                    (-NONE- *OP*))
                    
                  (CP 
                    (IP 
                      (NP-SBJ 
                        (DP 
                          (DT 各)
                    
                          (CLP 
                            (M 项)))
                    
                        (NP 
                          (NN 立法)
                    
                          (NN 转变)))
                    
                      (VP 
                        (VV 带来)
                    
                        (NP-OBJ 
                          (-NONE- *T*-1))))
                    
                    (DEC 的)))
                    
                (NP 
                  (NN 影响))))
                    
            (VP 
              (VV 作出)
                    
              (NP-OBJ 
                (CP 
                  (WHNP-2 
                    (-NONE- *OP*))
                    
                  (CP 
                    (IP 
                      (NP-SBJ 
                        (-NONE- *T*-2))
                    
                      (VP 
                        (VP 
                          (VA 适当))
                    
                        (CC 和)
                    
                        (VP 
                          (VA 详尽))))
                    
                    (DEC 的)))
                    
                (NP 
                  (NN 研究))))))
                    
        (PU ，)
                    
        (VP 
          (ADVP 
            (AD 以便))
                    
          (VP 
            (VV 决定)
                    
            (IP-OBJ 
              (NP-SBJ 
                (DP 
                  (DT 各))
                    
                (NP 
                  (NN 条款)))
                    
              (VP 
                (ADVP 
                  (AD 是否))
                    
                (VP 
                  (VV 合乎)
                    
                  (NP-OBJ 
                    (NN 公众)
                    
                    (NN 利益)))))))))))
arg0: 
                    *T*-2