(IP 
  (ADVP 
    (AD 但))
                    
  (LCP-TMP 
    (LCP 
      (NP 
        (DP 
          (DT 本))
                    
        (NP 
          (NN 月)))
                    
      (LC 初))
                    
    (LC 以来))
                    
  (PU ，)
                    
  (NP-SBJ 
    (NP-PN 
      (NR 安盟))
                    
    (NP 
      (NN 军队)))
                    
  (VP 
    (VP 
      (VV 开始)
                    
      (VP 
        (VV 反攻)))
                    
    (PU ，)
                    
    (VP 
      (VV 围困)
                    
      (AS 了)
                    
      (NP-OBJ-PN 
        (NR 万博市)
                    
        (CC 和)
                    
        (NR 奎托市)))))
arg0: 
                    安盟 军队 
                
arg1: 
                    万博市 和 奎托市 
                
argm: 
                    本 月 初 以来 
                
argm: 
                    但 
                

(VP 
  (VV 加固)
                    
  (AS 了)
                    
  (NP-OBJ 
    (DNP 
      (NP 
        (CP 
          (WHNP-1 
            (-NONE- *OP*))
                    
          (CP 
            (IP 
              (NP-SBJ 
                (-NONE- *T*-1))
                    
              (VP 
                (VV 受到)
                    
                (NP-OBJ 
                  (ADJP 
                    (JJ 反政府))
                    
                  (NP 
                    (NN 武装)))
                    
                (IP 
                  (NP-SBJ 
                    (-NONE- *PRO*))
                    
                  (VP 
                    (VV 围困)))))
                    
            (DEC 的)))
                    
        (NP-PN 
          (NR 万博)
                    
          (CC 和)
                    
          (NR 奎托市)))
                    
      (DEG 的))
                    
    (NP 
      (NN 防线))))
arg0: 
                    *PRO*