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 : Joan Riudavets was born in Es Migjorn Gran, Minorca, and lived there for his entire life. 
Subject : Joan Riudavets 
Relation : date of death
answer:
What date did Joan Riudavets die?


question:
Context : Triumph of the Nerds is a 1996 British/American television documentary, produced by John Gau Productions and Oregon Public Broadcasting for Channel 4 and PBS. 
Subject : Triumph of the Nerds 
Relation : based on
answer:
Which is the basis of Triumph of the Nerds?


question:
Context : YugoRosGaz a.d. is a Gazprom subsidiary in Serbia. 
Subject : YugoRosGaz 
Relation : parent company
answer:

What company is YugoRosGaz part of?