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 Q]: Context: He fought in Operation Barbarossa, the German invasion of the Soviet Union, and claimed his first aerial victory on 8 August 1941. Link Information: none Answer: none
[EX A]: How many days did Operation Barbarossa last?

[EX Q]: Context: In 1940, he was promoted to commander of the Q-ship which was sunk by a torpedo in the Atlantic, 200 miles west of Ireland; Link Information: When the Second World War started Answer: 1
[EX A]: How long had the Second World War been going on when Ryder was promoted to commander of the Q-ship that was sunk?

[EX Q]: Context: The marriage between George and Mary was an arranged marriage, occurring only because Prince Albert Victor, George's brother and Mary's original fiancé, died from influenza. Link Information: Prince Albert Victor, Duke of Clarence and Avondale (Albert Victor Christian Edward; 8 January 1864 – 14 January 1892)  Answer: 28
[EX A]:
How old was Prince Albert Victor when he died from influenza?