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.

Example Input: Context : Since its launch in 2004, Avalon Waterways has christened 18 new ships in Europe. 
Subject : Avalon Waterways 
Relation : parent company
Example Output: What is Avalon Waterways's parent company?

Example Input: Context : In 1961, the first M79 grenade launchers were delivered to the US Army. 
Subject : M79 grenade launcher 
Relation : service entry
Example Output: Which was the official year for the approval of M79 grenade launcher?

Example Input: Context : Conolly Abel Smith (as he was usually known) was the second son of Eustace Abel Smith, JP, a banker of Longhills House, Branston, Lincolnshire, and Aileen Geta Katherine Conolly, the daughter of Colonel John Augustus Conolly, VC. 
Subject : Conolly Abel Smith 
Relation : military branch
Example Output:
What branch was Conolly Abel Smith part of?