Definition: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
Input: original question: What is the video game series that includes a video game expansion designed by [Ken Rolston]?
answer: the elder scrolls
answer type: Video Game Series.
auxiliary information: Ken Rolston is an American computer game and board game designer best known for his work with West End Games and the hit computer game series The Elder Scrolls. In February 2007, he elected to join the staff of computer games company Big Huge Games to create a new role-playing game. Ken has a Masters Degree from NYU, and is a member of the Science Fiction Writers Association. He has been a professional games designer since 1982.

What video game series has an expansion designed by [Ken Rolston]?