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.

[Q]: Context: James was the son of Henry Lewis James, who was Dean of Bangor from 1934 to 1940. Link Information: none Answer: none
[A]: Who succeeded Robert James' father as the dean of Bangor?


[Q]: Context: The Korean War began and the Navy realized it had a need for an air station in the region Link Information: The Korean War (in South Korean , "Korean War"; in North Korean , "Fatherland Liberation War"; 25 June 1950 – 27 July 1953) Answer: 25 June 1950
[A]: When did the war begin that prompted the Navy to build the airport?


[Q]: Context: Three years later he went to Ascension Island to observe a near approach of Mars and to calculate its distance. Link Information: It is governed as part of the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha Answer: British
[A]:
What country claims ownership of the place Gill calculated the distance of Mars' approach?