I'm using SWI-Prolog, where I find a crafted libray for ordered sets and the required test then using select 3 it's really easy to sanitize the list.
I think I understood your idea so I tried and created a solution using that idea. Here it is ( let me know if it suits your needs, or if it has bugs... ).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.