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 : Johann Zacherl was born in Munich (Germany) in 1814 and died in Vienna (Austria) in 1888. 
Subject : Johann Zacherl 
Relation : date of death
Example Output: What year did Johann Zacherl die?

Example Input: Context : ISO 639 is a set of standards by the International Organization for Standardization that is concerned with representation of names for language and language groups. 
Subject : ISO 639 
Relation : standards body
Example Output: Who set the standards for ISO 639?

Example Input: Context : Son of a Witch (2005, ISBN 0-06-074722-6) is a fantasy novel written by Gregory Maguire. 
Subject : Son of a Witch 
Relation : series
Example Output:
Which series is Son of a Witch a part of?