(IP 
  (ADVP 
    (AD 然而))
                    
  (PU ，)
                    
  (PP-TMP 
    (P 在)
                    
    (NP 
      (CP 
        (WHNP-1 
          (-NONE- *OP*))
                    
        (CP 
          (IP 
            (NP-SBJ 
              (-NONE- *T*-1))
                    
            (VP 
              (ADVP 
                (AD 长))
                    
              (VP 
                (VV 达)
                    
                (QP-OBJ 
                  (ADVP 
                    (AD 将近))
                    
                  (QP 
                    (CD 五十)
                    
                    (CLP 
                      (M 年)))))))
                    
          (DEC 的)))
                    
      (NP 
        (PU 「)
                    
        (ADJP 
          (JJ 白色))
                    
        (NP 
          (NN 恐怖)
                    
          (NN 时期))
                    
        (PU 」))))
                    
  (PU ，)
                    
  (NP-PN-SBJ 
    (NR 绿岛))
                    
  (VP 
    (ADVP 
      (AD 却))
                    
    (VP 
      (VV 让)
                    
      (NP-OBJ 
        (NN 国人))
                    
      (IP 
        (NP-SBJ 
          (-NONE- *PRO*))
                    
        (VP 
          (VV 闻之色变))))))
arg0: 
                    *PRO*