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 : 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 : Pencil of Doom! is the second book of the Schooling Around series by Andy Griffiths. 
Subject : Pencil of Doom! 
Relation : series

Answer: What is the series that Pencil of Doom! is a part of?


Question: Context : Lufthansa Flight 502 was a scheduled flight from Hamburg, Germany to Buenos Aires, Argentina; on 11 January 1959, the flight was being operated by a Lockheed L-1049G Super Constellation (registration D-ALAK). 
Subject : Lufthansa Flight 502 
Relation : point in time

Answer:
The point in time of Lufthansa Flight 502 was what?