nt color="black">We add the <tt>OR IGNORE</tt> clause to our <tt>INSERT</tt> statement to indicate
that if this particular <tt>INSERT</tt> would cause a violation of the
"<tt>name</tt> must be unique" rule, the database system is allowed to ignore the 
<tt>INSERT</tt>. We are using the database constraint as a safety net
to make sure we don't inadvertently do something incorrect.<br />
<br />
Similarly, the following code ensures that we don't add the 
exact same <tt>Follows</tt> relationship twice.
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