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.

Context: He paid for the final extension of the Montgomery Canal from Berriew to Newtown Link Information: none Answer: none
Which city that the Montgomery Canal ran through after an extension has the largest population?

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
How long did the war in which Massey joined the Canadian Army last?

Context: The 2020 Vision Campaign launched in 2003, which aims to eliminate nuclear weapons, has earned Mayors for Peace the "World Citizenship Award" from the Nuclear Age Peace Foundation in 2004, the "Sean McBride" Award from the International Peace Bureau in 2006, and the Nuclear-Free Future Award from the Franz-Moll Foundation in 2007. Link Information: The World Citizenship Award is an award of the World Association of Girl Guides and Girl Scouts (WAGGGS). Launched in 1996 Answer: The World Citizenship Award

Which award that Akiba won is the oldest?