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 : Rudolf Witzig re-joined the military service in the newly created Bundeswehr of the Federal Republic of Germany on 16 January 1956. 
Subject : Rudolf Witzig 
Relation : conflict
Example Output: What war did Rudolf Witzig participate in?

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 : In December 1854 Edward Boxer was appointed second in command in the Mediterranean, and undertook the duties of superintendent at Balaklava in the Crimean War. 
Subject : Edward Boxer 
Relation : military branch
Example Output:
What armed force was Edward Boxer a part of?