(IP 
  (NP-SBJ 
    (CP 
      (WHNP-1 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *pro*))
                    
          (VP 
            (ADVP 
              (AD 仅))
                    
            (VP 
              (VV 存)
                    
              (NP-OBJ 
                (-NONE- *T*-1)))))
                    
        (DEC 的)))
                    
    (LCP 
      (QP 
        (CD 一千)
                    
        (CLP 
          (M 只)))
                    
      (LC 左右))
                    
    (ADJP 
      (JJ 野生))
                    
    (ADJP 
      (JJ 大))
                    
    (NP 
      (NN 熊猫)))
                    
  (VP 
    (ADVP 
      (AD 主要))
                    
    (VP 
      (VV 分布)
                    
      (PP-LOC 
        (P 在)
                    
        (NP-PN 
          (NP-PN 
            (NR 中国))
                    
          (NP-PN 
            (NR 四川)
                    
            (PU 、)
                    
            (NR 甘肃)
                    
            (CC 及)
                    
            (NR 陕西省)))))))
arg0: 
                    *OP* *pro* 仅 存 *T*-1 的 一千 只 左右 野生 大 熊猫 
                
arg1: 
                    在 中国 四川 、 甘肃 及 陕西省 
                
argm: 
                    主要