Relevance to List Installed Fixlets by Computer

I am trying to develop a Session Relevance clause to list the Fixlets that are installed, by Computer. There would be one record returned per Fixlet. For example:

Computer Name Fixlets Installed
mercury fixlet 1
mercury fixlet 2
venus fixlet 1
venus fixlet 3
mars fixlet 1
mars fixlet 2
mars fixlet 3

I believe I’ll need to include the following in my Relevance, but I’m struggling to get the computer to be listed in conjunction with the list of one or more Fixlets:

exists last became nonrelevant of it and relevant flag of it = false