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.
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Question: Context : It was formerly a Soviet design bureau, and was founded by Artem Mikoyan and Mikhail Gurevich as ``Mikoyan and Gurevich'', with the bureau prefix ``MiG.'' 
Subject : Mikoyan 
Relation : parent company

Answer: What company is Mikoyan part of?


Question: Context : Lojban has been shown to be translated in some of its parts into predicate logic. 
Subject : Lojban 
Relation : based on

Answer: The Lojban is based upon what?


Question: Context : South African Airways Flight 228 was a scheduled flight of the Boeing 707-300C Pretoria, registration ZS-EUW, on 20 April 1968 from Johannesburg to Heathrow via Windhoek, Luanda, Las Palmas and Frankfurt. 
Subject : South African Airways Flight 228 
Relation : point in time

Answer:
What was the date of South African Airways Flight 228?