Database structure for simple CMS

I am planning to build a very simple CMS. The 开发者_如何学Gorequirement is that I must have a database with three tables that have relationships to each other.

I can only think of one table. The table that stores the pages with a title, content, and some other things. But the other two tables, what could it be?

I'm afraid you are going to get any many variations as answer.

However, try article, category and author.