instruction:
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.
question:
Context : Delta Centauri (δ Cen, δ Centauri) is a star in the southern constellation of Centaurus. 
Subject : Delta Centauri 
Relation : constellation
answer:
Which constellation is Delta Centauri a part of?


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 : Dhoom 2 ((ˈd̪ʱuːm),English: Blast 2, also abbreviated and known as D:2, D2 and Dhoom 2: Back In Action) is a 2006 Indian action film directed by Sanjay Gadhvi and produced by Aditya Chopra and Yash Chopra at an estimated budget of ₹350 million (US$5.2 million) under the Yash Raj Films banner. 
Subject : Dhoom 2 
Relation : narrative location
answer:

Which place is Dhoom 2 in?