(IP-SBJ 
  (NP-SBJ 
    (-NONE- *pro*))
                    
  (VP 
    (VV 打打)
                    
    (NP-OBJ 
      (ADJP 
        (JJ 卫生))
                    
      (NP 
        (NN 麻将)))))
                    
(VP 
  (ADVP 
    (AD 到))
                    
  (VP 
    (VA 无妨))))
arg0: 
                    打打 卫生 麻将          
                
argm: 
                    到