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: made two deployments to the Persian Gulf during Operations Desert Storm and Southern Watch Link Information: Operation Southern Watch was an air-centric military operation conducted by the United States Department of Defense from Summer 1992 to Spring 2003. Answer: Southern Watch
Which of the operations Poindexter was deployed to in the Persian Gulf lasted longer?

Context: Built by Polish engineer Thaddeus Kosciuszko under the command of George Washington, Fort Mercer was built in 1777 Link Information: Andrzej Tadeusz Bonawentura Kościuszko (; 4 or 12 February 1746  Answer: 31
How old was the engineer who built Fort Mercer when it was built?

Context: made his debut in March 1975 Link Information: Construction started on 28 November 1935 and the airport opened partly in June 1937 Answer: 38

How long had Manchester Airport been in operation for the year Keegan made his debut?