(IP 
  (NP-SBJ 
    (-NONE- *pro*))
                    
  (VP 
    (ADVP 
      (AD 没))
                    
    (VP 
      (VV 想到)
                    
      (IP-OBJ 
        (NP-SBJ 
          (CP 
            (WHNP-1 
              (-NONE- *OP*))
                    
            (CP 
              (IP 
                (NP-SBJ 
                  (-NONE- *T*-1))
                    
                (VP 
                  (VV 节外生枝)))
                    
              (DEC 的))))
                    
        (PU ，)
                    
        (VP 
          (ADVP 
            (AD 反而))
                    
          (VP 
            (VC 是)
                    
            (NP-PRD 
              (DNP 
                (NP 
                  (NP 
                    (QP 
                      (CD 四))
                    
                    (ADJP 
                      (JJ 大))
                    
                    (NP 
                      (NN 弟子)))
                    
                  (NP 
                    (NN 内部)))
                    
                (DEG 的))
                    
              (NP 
                (NN 认证)
                    
                (NN 问题)))))))))
arg0: 
                    *T*-1