(NP-SBJ 
  (CP 
    (WHNP-1 
      (-NONE- *OP*))
                    
    (CP 
      (IP 
        (NP-SBJ 
          (-NONE- *T*-1))
                    
        (VP 
          (NP-LOC 
            (NN 世界))
                    
          (ADVP 
            (AD 最))
                    
          (VP 
            (VA 干净))))
                    
      (DEC 的)))
                    
  (NP 
    (NN 地方)))
arg0: 
                    *T*-1 
                
argm: 
                    世界 
                
argm: 
                    最