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.

Input: Consider Input: Context : Narcissus in Chains is the tenth book in the Anita Blake: 
Subject : Narcissus in Chains 
Relation : series

Output: What is the series that Narcissus in Chains is a part of?


Input: Consider Input: Context : Since its launch in 2004, Avalon Waterways has christened 18 new ships in Europe. 
Subject : Avalon Waterways 
Relation : parent company

Output: What is Avalon Waterways's parent company?


Input: Consider Input: Context : Kappa Herculis (κ Her, κ Herculis) is a double star in the constellation Hercules. 
Subject : Kappa Herculis 
Relation : constellation


Output: What constellation is home to Kappa Herculis?