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 : Elizabeth Stanhope, Countess of Chesterfield (c. 1677--1708) was the wife of Philip Stanhope, 3rd Earl of Chesterfield, and the daughter of George Savile, 1st Marquess of Halifax. 
Subject : Elizabeth Stanhope, Countess of Chesterfield 
Relation : spouse
What is Elizabeth Stanhope, Countess of Chesterfield's spouse's name?

Context : Delta Air Lines Flight 9570 crashed on 30 May 1972 at the Greater Southwest International Airport in Fort Worth, Texas, while conducting a training flight. 
Subject : Delta Air Lines Flight 9570 
Relation : point in time
The date of Delta Air Lines Flight 9570?

Context : A-Lex is the eleventh studio album by the Brazilian metal band Sepultura. 
Subject : A-Lex 
Relation : based on

The A-Lex is based upon what?