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.

Ex Input:
Context : Delta Solar is a public artwork by Venezuelan sculptor Alejandro Otero located outside of the National Air and Space Museum in Washington, DC, United States.
Subject : Delta Solar
Relation : collection

Ex Output:
What is the name of the place where Delta Solar can be found?

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

Ex Output:
The Lojban is based upon what?

Ex Input:
Context : At FCM Jammy and Savatier finished the Char 2C prototype, the other nine tanks being built almost simultaneously; all ten were delivered in 1921 and modified by the factory until 1923.
Subject : Char 2C
Relation : service entry

Ex Output:
What year did Char 2C come into use?