"mention in your description which line(s) you are using."
I know it's in your title, but please put it in the description too.

Not really sure how to edit that so:
When the bee stings
When I'm feeling sad
I simply remember my favorite things

Go to;
My Stuff
my contest entries
find this entry and click on ;
edit entry
Then just enter the line in the description box, no need to upload the entry again, even though you can't see it in the upload box.

I'm not trying to be difficult, but some people get finicky, if all the guidelines aren't followed.
Good Luck