(IP 
  (NP-SBJ 
    (CP 
      (WHNP-2 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-TPC 
            (-NONE- *T*-2))
                    
          (NP-TMP 
            (NT 以往))
                    
          (NP-SBJ 
            (NN 经济))
                    
          (VP 
            (ADVP 
              (AD 相对))
                    
            (VP 
              (VA 落后))))
                    
        (DEC 的)))
                    
    (NP 
      (NN 内陆)
                    
      (NN 地区)))
                    
  (VP 
    (NP-TMP 
      (NT 如今))
                    
    (ADVP 
      (AD 也))
                    
    (VP 
      (VV 掀起)
                    
      (AS 了)
                    
      (NP-OBJ 
        (CP-APP 
          (IP 
            (NP-SBJ 
              (-NONE- *pro*))
                    
            (VP 
              (VV 开放)))
                    
          (DEC 的))
                    
        (NP 
          (NN 热潮))))))
arg0: 
                    *T*-2 
                
arg0: 
                    经济 
                
argm: 
                    相对 
                
argm: 
                    以往