(IP 
  (NP-SBJ 
    (-NONE- *pro*))
                    
  (VP 
    (ADVP 
      (AD 只))
                    
    (VP 
      (VV 见)
                    
      (IP-OBJ 
        (IP 
          (NP-SBJ 
            (ADJP 
              (JJ 雄))
                    
            (NP 
              (NN 蛇)))
                    
          (VP 
            (VSB 
              (VA 温柔)
                    
              (VV 吐信))))
                    
        (PU ，)
                    
        (IP 
          (NP-SBJ 
            (ADJP 
              (JJ 母))
                    
            (NP 
              (NN 蛇)))
                    
          (VP 
            (VSB 
              (VV 昂头)
                    
              (VV 作态))))))))
arg0: 
                    母 蛇