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.

Context : After Attila's death in 453 AD, his Empire crumbled and its remains were ruled by his three sons, Ellac, Dengizich and Ernak. 
Subject : Ellac 
Relation : date of death
On what date did Ellac die?

Context : Rod Derline (born March 11, 1952) is a former professional basketball guard for the Seattle SuperSonics of the National Basketball Association (NBA). 
Subject : Rod Derline 
Relation : drafted by
What team does Rod Derline belong to?

Context : What Just Happened is an independent film, produced by 2929 Productions, Art Linson Productions and Tribeca Productions, and was released on October 17, 2008. 
Subject : What Just Happened 
Relation : director

Who was responsible for the direction of What Just Happened?