Okay, so there is a big book of rules that the government gives to people who work with money. One of the rules is called dodi 6130.03 and it talks about how to make sure the money is being used the right way.
Section 5 of this rule talks about something called "rebalancing," which means checking to see if the investments are still good and making changes if they're not. It's like when you have a balanced meal and you want to make sure you're eating enough fruits and vegetables. You check to see if you need to add more or take some away to make it even better.
Now, 13f and 14m are just some specific parts of this section that tell the people who work with money which kinds of investments they need to tell the government about. It's like telling your parents what you're eating for dinner so they know you're eating healthy.
So basically, dodi 6130.03 is a rule that helps make sure people who work with money are doing it in the right way, and section 5, 13f, and 14m are just different parts of that rule that talk about how to make sure the investments are good and which ones to tell the government about.