What does the asterisks in table comments mean?

Hi all

When reading the table definitions, for example here: https://docs.oracle.com/en/cloud/saas/project-management/25a/oedpp/pjcexpitemsall-24862.html#Details there is a lot of the comments that have five asterisk's ***** in them… What does that mean? There is no explanations anywhere on the page

I would think that it should refer to an extra commet, but I'm not smart enough to find it 😄

Thanks in advance

Anders