instruction:
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.
question:
Context: Upon mobilization and the declaration of war, the 1st Battalion, Wilts deployed to France as part of the 3rd Division's 7th Brigade, landing in France on 14 August 1914 Link Information: none Answer: none
answer:
How long had the 7th Brigade existed before Wilts was deployed to France?


question:
Context: n Indiana, where it is illegal to create a historical marker in the "state format" without first getting official approval from that state's historical bureau Link Information: none Answer: none
answer:
How many historical markers does the state of Indiana have?


question:
Context: the Second World War, the station was very active during the Battle of Britain and the Blitz in 1940–41 in No. 12 Group Link Information: none Answer: none
answer:

How many members did No. 11 Group have during the years of the Blitz?