(NP-OBJ 
  (QP 
    (CD 一)
                    
    (CLP 
      (M 座)))
                    
  (CP 
    (WHNP-2 
      (-NONE- *OP*))
                    
    (CP 
      (IP 
        (NP-SBJ 
          (-NONE- *T*-2))
                    
        (VP 
          (VP 
            (VCD 
              (VV 通风)
                    
              (VV 透雨)))
                    
          (PU 、)
                    
          (VP 
            (ADVP 
              (AD 不))
                    
            (VP 
              (VV 堪)
                    
              (IP-OBJ 
                (NP-SBJ 
                  (-NONE- *PRO*))
                    
                (VP 
                  (VV 住人)))))))
                    
      (DEC 的)))
                    
  (NP 
    (NN 防空洞)))
arg0: 
                    *PRO*