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 : The Thompson submachine gun is an American submachine gun, invented by John T. Thompson in 1918, that became infamous during the Prohibition era. 
Subject : Thompson submachine gun 
Relation : service entry

SOLUTION: What year was the service entry date for Thompson submachine gun?

PROBLEM: Context : ISO 639 is a set of standards by the International Organization for Standardization that is concerned with representation of names for language and language groups. 
Subject : ISO 639 
Relation : standards body

SOLUTION: Who set the standards for ISO 639?

PROBLEM: Context : NGC 80 is a lenticular galaxy located in the Andromeda constellation. 
Subject : NGC 80 
Relation : constellation

SOLUTION:
What constellation does NGC 80 belong to?