(VP 
  (VV 缓解)
                    
  (NP-OBJ 
    (CP 
      (WHNP-1 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *T*-1))
                    
          (VP 
            (ADVP 
              (AD 日趋))
                    
            (VP 
              (VA 拥挤))))
                    
        (DEC 的)))
                    
    (NP 
      (NN 地面)
                    
      (NN 交通))))
arg0: 
                    *T*-1 
                
argm: 
                    日趋