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 : 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
Who set the standards for ISO 639?

Context : Deadly Dreams is a 1988 horror film directed by Kristine Peterson. 
Subject : Deadly Dreams 
Relation : director
Who was Deadly Dreams was directed by?

Context : Friedrich Ehmann's birthplace in the Kingdom of Württemberg can be deduced by its custom of awarding their military medals solely to their own citizens. 
Subject : Friedrich Ehmann 
Relation : conflict

In which war did Friedrich Ehmann participate?