TASK DEFINITION: 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.
PROBLEM: Context : The Fiat L6/40 was a light tank used by the Italian army from 1940 through World War II. It was designed by Fiat-Ansaldo as an export product, and was adopted by the Italian Army when officials learned of the design and expressed interest.
Subject : Fiat L6/40
Relation : service entry

SOLUTION: In what year did Fiat L6/40 enter service?

PROBLEM: Context : The Duke of Wellington's Regiment (West Riding) was a line infantry regiment of the British Army, forming part of the King's Division.
Subject : Duke of Wellington's Regiment
Relation : military branch

SOLUTION: What branch was Duke of Wellington's Regiment part of?

PROBLEM: Context : Trisquel (officially Trisquel GNU/Linux) is a computer operating system, a Linux distribution, derived from another distribution, Ubuntu.
Subject : Trisquel
Relation : based on

SOLUTION:
Which is the basis of Trisquel?