You will be given a context, a subject and a relation. Your task is to generate a question based on the subject and relation. The generated question should include the given subject. Try to use a minimum number of words that are not present in either context, subject or relation while generating question.

Context : Island at War is a British television series that tells the story of the German occupation of the Channel Islands. 
Subject : Island at War 
Relation : narrative location
Which place does Island at War exist in?

Context : Bartholomew Diggins died in Washington, D.C. and was buried in Arlington National Cemetery, Arlington County, Virginia. 
Subject : Bartholomew Diggins 
Relation : military branch
What military was Bartholomew Diggins a part of?

Context : Slash'EM (Super Lotsa Added Stuff Hack - Extended Magic) is a variant of the roguelike game NetHack that offers extra features, monsters, and items. 
Subject : Slash'EM 
Relation : based on

The Slash'EM is based upon what?