(IP 
  (NP-SBJ 
    (PN 我))
                    
  (VP 
    (VV 在)
                    
    (NP-OBJ 
      (CP 
        (WHNP-2 
          (-NONE- *OP*))
                    
        (CP 
          (IP 
            (IP 
              (NP-TPC 
                (-NONE- *T*-2))
                    
              (NP-SBJ 
                (NN 地层)
                    
                (NN 下陷))
                    
              (VP 
                (ADVP 
                  (AD 高))
                    
                (VP 
                  (VV 达)
                    
                  (QP-OBJ 
                    (QP 
                      (CD 三)
                    
                      (CLP 
                        (M 米)))
                    
                    (ADVP 
                      (AD 多))))))
                    
            (PU 、)
                    
            (IP 
              (NP-SBJ 
                (-NONE- *T*-2))
                    
              (VP 
                (ADVP 
                  (AD 向下))
                    
                (VP 
                  (VV 沉沦)))))
                    
          (DEC 的)))
                    
      (NP 
        (NN 地方)))))
arg0: 
                    *T*-2 
                
argm: 
                    向下