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.
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Question: 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

Answer: What war did Rudolf Witzig participate in?


Question: Context : Anthony Salvin (17 October 1799 -- 17 December 1881) was an English architect. 
Subject : Anthony Salvin 
Relation : date of death

Answer: The death of Anthony Salvin occured on what date?


Question: Context : Costa Coffee was founded in London in 1971 by the Costa family as a wholesale operation supplying roasted coffee to caterers and specialist Italian coffee shops. 
Subject : Costa Coffee 
Relation : parent company

Answer:
Which company is the parent company of Costa Coffee?