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.

Input: Consider Input: 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

Output: When did the war begin that prompted the Navy to build the airport?


Input: Consider Input: Context: Mouat indicated that the oil was the product of a tree Chaulmoogra odorata, which had been described in 1815 by William Roxburgh, a surgeon and naturalist, while he was cataloging the plants in the East India Company’s Link Information: He studied medicine at Edinburgh University and matriculated around 1771 or 1772 Answer: Edinburgh University

Output: Where was the surgeon and naturalist who described the Chaulmoogra odorata tree in 1815 educated?


Input: Consider Input: Context: he attended a Catholic primary school in Amsterdam (until 1964) Link Information: none Answer: none


Output: What was the population of Amsterdam the year Van der Lans stopped attending Catholic primary school there?