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: which later formed the core of government bureaucracy during the Shah and Rana period. Link Information: none Answer: none
How much time was between the periods?

Context: The C-17s will be flown by the 535th Airlift Squadron. Link Information: none Answer: none
How many soldiers are in the unit tasked with flying C-17s at Hickam?

Context: Granite Canyon is located in Grand Teton National Park Link Information: At approximately 310000 acre Answer: 484

How large in square miles is the National Park where Granite Canyon is located?