(IP 
  (NP-SBJ 
    (CP 
      (WHNP-1 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *pro*))
                    
          (VP 
            (ADVP 
              (AD 已))
                    
            (VP 
              (VV 开垦)
                    
              (NP-OBJ 
                (-NONE- *T*-1)))))
                    
        (DEC 的))))
                    
  (VP 
    (VV 要)
                    
    (VP 
      (VP 
        (VP 
          (VE 有)
                    
          (NP-OBJ 
            (NN 计划)))
                    
        (VP 
          (VE 有)
                    
          (NP-OBJ 
            (NN 步骤))))
                    
      (VP 
        (VCD 
          (VV 退耕)
                    
          (VV 还林))))))
arg1: 
                    *OP* *pro* 已 开垦 *T*-1 的