When I click submit it says, "ul element should have three li elements" when I thought I got it right. I'll try over and over and it won't work.
One li element looks like this:
<li> some text in here </li>
Three of them will look like that except that there will be two more below it.
If you post your code then we can have a look and help you fix the problem.
How to post code in this forum.