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: Massey joined the Canadian Army at the outbreak of World War I, Link Information: First World War, the Great War, the Seminal Catastrophe, and initially in North America as the European War, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. Answer: 4

A: How long did the war in which Massey joined the Canadian Army last?
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Q: Context: She previously taught at the London School of Economics, New York University, and the University of Chicago. Link Information: 

The London School of Economics (officially the London School of Economics and Political Science, often referred to as LSE) is a public research university located in London, England Answer: London, England

A: What cities had Chen taught in before she took the job as the Malcolm K. Brachman Professor of Economics at Yale?
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Q: Context: Dionizy Waledyński (Dionisii Valedinsky), continued to work for the autocephaly of the Polish Orthodox church, which was finally granted by the Ecumenical Patriarch of Constantinople in his Tomos of 13 November 1924. Link Information: Metropolitan Dionizy (born Konstanty Nikołajewicz Waledyński 4 May/16 May 1876 Answer: 48

A:
How old was Waledyński when the autocephaly he requested was finally granted?
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