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 : Delta Centauri (δ Cen, δ Centauri) is a star in the southern constellation of Centaurus. 
Subject : Delta Centauri 
Relation : constellation
Example Output: Which constellation is Delta Centauri a part of?

Example Input: Context : As dated in the 1959 version of de Camp's essay ``The Krishna Stories'' and James Cambias's GURPS Planet Krishna (a 1997 gaming guide to the Viagens series authorized by de Camp), the action of The Virgin of Zesh takes place in A.D. 2150, falling between The Prisoner of Zhamanak and The Bones of Zora, and making it the ninth story set on Krishna in terms of internal chronology. 
Subject : The Virgin of Zesh 
Relation : series
Example Output: The The Virgin of Zesh is part of a what series?

Example Input: Context : The Massacre of the Latins (Italian: Massacro dei Latini; Greek: Σφαγή των Λατίνων) was a large-scale massacre of the Roman Catholic (called ``Latin'') inhabitants of Constantinople, the capital of the Byzantine Empire, by the Eastern Orthodox population of the city in April 1182. 
Subject : Massacre of the Latins 
Relation : point in time
Example Output:
What is the date when Massacre of the Latins happened?