XLA_DISTRIBUTION_LINKS understanding specific columns

  Hello All,

   I have explored the table XLA_DISTRIBUTION_LINKS in ap schema

   but i have found some ambiguous columns i don't know from where data is inserted into it

   in another way of my question

   What are the peers of those columns in the other tables ?

  for example :

  

  What are the peers of these columns

  

  REF_AE_HEADER_ID

  REF_EVENT_ID

    PLS reply ASAP

Thanks