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.

[Q]: Context : Lojban has been shown to be translated in some of its parts into predicate logic. 
Subject : Lojban 
Relation : based on
[A]: The Lojban is based upon what?


[Q]: Context : Metzinger's Femme à l'Éventail forms part of the Founding Collection of the Solomon R. Guggenheim Museum, New York. 
Subject : Femme à l'Éventail 
Relation : collection
[A]: What is the name of the place where Femme à l'Éventail can be found?


[Q]: Context : Including the single prototype, 141 Flakpanzer 38(t)s were built from November 1943 to February 1944, entering service in 1944. 
Subject : Flakpanzer 38(t) 
Relation : service entry
[A]:
What year is Flakpanzer 38(t) associated with?