(IP 
  (ADVP 
    (AD 只是))
                    
  (NP-SBJ 
    (CP 
      (WHNP-2 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *T*-2))
                    
          (VP 
            (QP-ADV 
              (OD 第一)
                    
              (CLP 
                (M 个)))
                    
            (VP 
              (VV 出生))))
                    
        (DEC 的)))
                    
    (NP 
      (NN 男婴)))
                    
  (VP 
    (PP-TMP 
      (P 在)
                    
      (NP 
        (NT 二十八日)))
                    
    (VP 
      (VV 出现)
                    
      (IP-OBJ 
        (NP-SBJ 
          (-NONE- *pro*))
                    
        (VP 
          (VV 频发)
                    
          (IP-OBJ 
            (NP-SBJ 
              (NN 呼吸)
                    
              (NN 暂停))
                    
            (PU ，)
                    
            (VP 
              (VV 伴)
                    
              (NP-OBJ 
                (NN 心率)
                    
                (NN 减慢)))))))))
arg0: 
                    心率