Need Help Making a Detailed Smart Playlist ~ Having Problems

I am on a Win 7 machine using iTunes 11.1.5.5

I currently have a Smart Playlist called "Greatest Hits" with the following criteria:

Match ANY of the following rules:

• Album - contains - Best
• Album - contains - Greatest
• Album - contains - Hits
• Album - contains - Baddest

~~~~~~~~~~~~~~~~~~~

What that does is create a playlist for me that has all the Greatest Hits Albums, etc.

What I want to do:

I want to add an additional filter to that Smart Playlist so it only shows me songs that have not been rated yet. I do not want it to show 5,4,3,2, or 1 starred songs.

~~~~~~~~~~~~~~~~~~~

I tried multiple things and it did not work, the starred songs still showed up.

Here are the combinations that I tried and non of them worked (the starred songs were still there):

I added the following rules with my existing ones

• Rating - is not - 5 star
• Rating - is not - 4 star
• Rating - is not - 3 star
• Rating - is not - 2 star
• Rating - is not - 1 star

I added the following rules with my existing ones

Rating - is - 0 star

I added the following rules as a my existing ones

Rating - is less than - a star

Thank you for any assistance you may be able to provide.