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 : The GER Class Y65 was a class of twelve 2-4-2T steam locomotives designed by S. D. Holden and built by the company's Stratford Works in 1909--1910. 
Subject : GER Class Y65 
Relation : service entry

Answer: What year was GER Class Y65 introduced?


Question: Context : Giovanna Sestini was baptised 7 April 1749 in the Pieve di San Martino a Gangalandi in the small town of Lastra a Signa, near Florence. 
Subject : Giovanna Sestini 
Relation : occupation

Answer: What was Giovanna Sestini's occupation?


Question: Context : Willi Rosenstein was born on 28 January 1892 in Stuttgart, Germany. 
Subject : Willi Rosenstein 
Relation : conflict

Answer:
During which historic war was Willi Rosenstein an officer?