relationships so we could find a list of 
everyone who is following a particular account.<br />
<br />
Since everyone will potentially have many accounts that follow
them, we cannot simply add a single column to our <tt>Twitter</tt> table. 
So we create a new table that keeps track of pairs of friends.
The following is a simple way of making such a table:
</font><pre><font size="4" color="blue">
CREATE TABLE Pals (from_friend TEXT, to_friend TEXT)
</font></pre><font color="black">Each time we encounter a pe