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.

Ex Input:
Context: which later formed the core of government bureaucracy during the Shah and Rana period. Link Information: none Answer: none

Ex Output:
How much time was between the periods?


Ex Input:
Context: After the war ended the DGOS presented performances by European opera companies such as the Opera-Comique, Hamburg Opera and the Netherlands Opera Link Information: none Answer: none

Ex Output:
Which European opera company presented by DGOS has been in operation for the greatest amount of years?


Ex Input:
Context: He returned briefly to China in 1915 to oppose Yuan Shikai’s attempt to establish a new Chinese Empire, but soon returned to Europe. Link Information: Yuan Shikai (; 16 September 1859 Answer: 56

Ex Output:

How old was Yuan Shikai the year that Chu Minyi opposed his attempt to establish a new Chinese Empire?