(PP-PRP 
  (P 由于)
                    
  (IP 
    (NP-SBJ 
      (QP 
        (CD ４)
                    
        (CLP 
          (M 个)))
                    
      (NP 
        (NN 人)))
                    
    (VP 
      (VV 住)
                    
      (PP 
        (P 在)
                    
        (NP 
          (NP 
            (QP 
              (OD ３))
                    
            (NP 
              (NN 楼)))
                    
          (CP 
            (WHNP-2 
              (-NONE- *OP*))
                    
            (CP 
              (IP 
                (NP-SBJ 
                  (-NONE- *pro*))
                    
                (VP 
                  (NP-MNR 
                    (NN 铁皮))
                    
                  (VP 
                    (VV 加盖)
                    
                    (NP-OBJ 
                      (-NONE- *T*-2)))))
                    
              (DEC 的)))
                    
          (NP 
            (NN 房间)))))))
                    
(PU ，)
                    
(IP-ADV 
  (NP-SBJ 
    (NN 火苗))
                    
  (VP 
    (ADVP 
      (AD 向上))
                    
    (VP 
      (VV 窜烧))))
                    
(NP-SBJ-4 
  (QP 
    (CD ４)
                    
    (CLP 
      (M 个)))
                    
  (NP 
    (NN 人)))
                    
(VP 
  (VP 
    (VV 逃生无门))
argm: 
                    由于 ４ 个 人 住 在 ３ 楼 铁皮 加盖 的 房间          
                
argm: 
                    火苗 向上 窜烧          
                
arg0: 
                    ４ 个 人