Detailed Instructions: You will be given one or more triples. The second part of each triple shows the relation between the first and the third element. Your task is to write a simple and short piece of text (sentence(s)) that describes the triples in natural language.
Q: A_Fortress_of_Grey_Ice | mediaType | Hardcover
A_Fortress_of_Grey_Ice | author | J._V._Jones
A_Fortress_of_Grey_Ice | ISBN_number | "0-7653-0633-6"
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A Fortress of Grey Ice by J.V. Jones was produced in Hardcover and has an ISBN number of 0-7653-0633-6.