TASK DEFINITION: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
PROBLEM: Context : ``The Adventure of the Blue Carbuncle'', one of the 56 short Sherlock Holmes stories written by British author Sir Arthur Conan Doyle, is the seventh story of twelve in The Adventures of Sherlock Holmes. 
Answer : Sherlock Holmes

SOLUTION: The The Adventure of the Blue Carbuncle has what character?

PROBLEM: Context : HD 202259 is a suspected variable star in the equatorial constellation of Aquarius. 
Answer : Aquarius

SOLUTION: What constellation is home to HD 202259?

PROBLEM: Context : AIML, or Artificial Intelligence Markup Language, is an XML dialect for creating natural language software agents. 
Answer : XML

SOLUTION:
Which is the basis of AIML?