Interrupt automatic paragraph numbering sequence in MS Word

Hello,

When a style is used in MS Word (2010) to automatically number paragraphs, suppose you want to begin the numbering anew at some point. How is that done?

For example, suppose the following are automatically numbered paragraphs in a Word document:

        A.    1st paragraph

        B.    2nd paragraph

        C.    3rd paragraph

        D.    4th paragraph

Clearly, pressing the {Enter} key at the end of the 4th paragraph will result in a new paragraph identified with the letter "E":

        A.    1st paragraph

        B.    2nd paragraph

        C.    3rd paragraph

        D.    4th paragraph

        E.    5th paragraph

However, suppose that for some reason, instead of "E", you want the 5th paragraph to be numbered "A" again and then have subsequent paragraphs automatically numbered from that new starting point (bold):

        A.    1st paragraph

        B.    2nd paragraph

        C.    3rd paragraph

        D.    4th paragraph

       A.    5th paragraph

        B.    6th paragraph

        C.    7th paragraph

        D.    8th paragraph

In other words, suppose you want to interrupt the sequence and begin anew but still have the numbering occur automatically from that point forward. How would that be done?

Thanks