(IP 
  (NP-SBJ 
    (NT 一九九四年))
                    
  (NP-SBJ 
    (NP-PN 
      (NR 中国))
                    
    (NP 
      (NN 科学家)))
                    
  (VP 
    (LCP-TMP 
      (IP 
        (NP-SBJ 
          (-NONE- *PRO*))
                    
        (VP 
          (ADVP 
            (AD 实地))
                    
          (VP 
            (VV 勘察))))
                    
      (LC 后))
                    
    (VP 
      (VV 确认)
                    
      (IP-OBJ 
        (NP-SBJ 
          (PN 其))
                    
        (VP 
          (VC 为)
                    
          (NP-PRD 
            (ADJP 
              (QP 
                (NP 
                  (NN 世界))
                    
                (QP 
                  (OD 第一)))
                    
              (ADJP 
                (JJ 大)))
                    
            (NP 
              (NN 峡谷))))))))
arg0: 
                    *PRO* 
                
argm: 
                    实地