TASK DEFINITION: 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.
PROBLEM: Context : Julia Cornelia Salonina (died 268, Mediolanum) was an Augusta, wife of Roman Emperor Gallienus and mother of Valerian II, Saloninus, and Marinianus. 
Subject : Cornelia Salonina 
Relation : spouse

SOLUTION: What is Cornelia Salonina's spouse's name?

PROBLEM: Context : NGC 339 is a globular cluster in the constellation Tucana the Toucan. 
Subject : NGC 339 
Relation : constellation

SOLUTION: Which constellation is NGC 339 in?

PROBLEM: Context : Robert B. Johnston was born in Edinburgh, Scotland on October 6, 1937. 
Subject : Robert B. Johnston 
Relation : military branch

SOLUTION:
What military was Robert B. Johnston a part of?