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 : The Muppet Christmas Carol is a 1992 American musical fantasy-comedy film and an adaptation of Charles Dickens's 1843 novel A Christmas Carol. 
Subject : The Muppet Christmas Carol 
Relation : based on
[A]: Which is the basis of The Muppet Christmas Carol?


[Q]: Context : DMPI launched its wireless service, known as Sun Cellular, in March 2003. 
Subject : Sun Cellular 
Relation : parent company
[A]: Which company is the parent company of Sun Cellular?


[Q]: Context : Charles Frederick Worth was born on October 13, 1825 in the Lincolnshire market town of Bourne to William and Ann Worth. 
Subject : Charles Frederick Worth 
Relation : occupation
[A]:
What was Charles Frederick Worth's occupation?