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 : Columbus Nova is an investment company founded in 2000 and centered in New York City. 
Subject : Columbus Nova 
Relation : parent company
Example Output: Which company is the parent company of Columbus Nova?

Example Input: Context : All is Safely Gathered In is the eighth episode of the fifth series of the British comedy series Dad's Army. 
Subject : All is Safely Gathered In 
Relation : series
Example Output: Of what series is All is Safely Gathered In a part of?

Example Input: Context : Richard Bowen (1761 -- 25 July 1797) was an officer of the Royal Navy who served during the American War of Independence and the French Revolutionary Wars. 
Subject : Richard Bowen 
Relation : military branch
Example Output:
What military branch did Richard Bowen belong to?