(IP 
  (NP-SBJ 
    (-NONE- *PRO*))
                    
  (VP 
    (VP 
      (PP-LOC 
        (P 在)
                    
        (NP 
          (ADJP 
            (JJ 超高层))
                    
          (NP 
            (NN 大楼))))
                    
      (VP 
        (VV 上班)))
                    
    (PU ，)
                    
    (VP 
      (CP-CND 
        (ADVP 
          (CS 如果))
                    
        (IP 
          (NP-SBJ 
            (-NONE- *pro*))
                    
          (VP 
            (VV 失火))))
                    
      (PU ，)
                    
      (ADVP 
        (AD 只))
                    
      (VP 
        (VV 能)
                    
        (VP 
          (PP-MNR 
            (P 靠)
                    
            (NP 
              (DNP 
                (NP 
                  (NN 高楼))
                    
                (DEG 的))
                    
              (NP 
                (PU 「)
                    
                (NN 防灾)
                    
                (NN 系统)
                    
                (PU 」))
                    
              (PU ：)
                    
              (PRN 
                (NP 
                  (ADVP 
                    (AD 例如))
                    
                  (NP 
                    (NN 紧急)
                    
                    (NN 升降梯)
                    
                    (PU 、)
                    
                    (NN 送水管)
                    
                    (PU ，)
                    
                    (NN 洒水)
                    
                    (PU 、)
                    
                    (NN 排烟)
                    
                    (NN 设备))))))
                    
          (VP 
            (MSP 来)
                    
            (VP 
              (VV 自救))))))))
arg0: 
                    *pro*