<request for help with something basic>

<out-of-place greeting>
<description of the problem>
<complaining about being fucked>
<something about the professor>
<unindented code in proportional font>

</Polecat Kebabs>
</imageboard dude trying to fit in using a joke out of place>
</tablecat>
</saged /DON'T HELP HIM!/ answer>
</impatient bump>
</unindented code in proportional font>
</something about the professor>
</complaining about being fucked>
</description of the problem>
</out-of-place greeting>
</request for help with something basic>

There, now it's valid SGML.