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.

[EX Q]: Context : Twofish was designed by Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson; the ``extended Twofish team'' who met to perform further cryptanalysis of Twofish and other AES contest entrants included Stefan Lucks, Tadayoshi Kohno, and Mike Stay. 
Subject : Twofish 
Relation : based on
[EX A]: Which is the basis of Twofish?

[EX Q]: 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
[EX A]: The Slash'EM is based upon what?

[EX Q]: Context : ISO 3166-2:KH is the entry for Cambodia in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1. 
Subject : ISO 3166-2:KH 
Relation : standards body
[EX A]:
Who set the standards for ISO 3166-2:KH?