In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.

Context: His father was Army Medical Corps officer Major Walter Reed, namesake of the Walter Reed Army Medical Center. Link Information: Reed died in the Walter Reed Army Medical Center in 1956. Answer: 7

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
How many years after the medical center was named after his father did Reed die in the same center?