(IP-PRD 
  (NP-SBJ 
    (-NONE- *pro*))
                    
  (VP 
    (VP 
      (PP-TMP 
        (P 在)
                    
        (NP 
          (NT 过去)))
                    
      (VP 
        (VC 是)
                    
        (VP 
          (PP-MNR 
            (P 以)
                    
            (NP 
              (DNP 
                (NP 
                  (NN 孙子))
                    
                (DEG 的))
                    
              (NP 
                (NN 位置)
                    
                (NN 立场))))
                    
          (VP 
            (MSP 去)
                    
            (VP 
              (VV 理解)
                    
              (NP-OBJ 
                (NN 祖父)))))))
                    
    (PU ，)
                    
    (VP 
      (NP-TMP 
        (NT 现在))
                    
      (ADVP 
        (AD 却))
                    
      (ADVP 
        (AD 转而))
                    
      (VP 
        (VV 变成)
                    
        (IP-OBJ 
          (NP-SBJ 
            (PN 自身))
                    
          (VP 
            (VV 袭取)
                    
            (AS 了)
                    
            (NP-OBJ 
              (DNP 
                (NP 
                  (NN 祖父))
                    
                (DEG 的))
                    
              (NP 
                (NN 角度)))))))))
arg0: 
                    自身 
                
arg1: 
                    祖父 的 角度