(IP-PRD 
  (NP-SBJ 
    (-NONE- *PRO*))
                    
  (VP 
    (VV 阐发)
                    
    (NP-OBJ 
      (NT 五四)
                    
      (NN 精神))))
arg0: 
                    *PRO* 
                
arg1: 
                    五四 精神