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.
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Question: 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

Answer: How old was the engineer who built Fort Mercer when it was built?


Question: Context: Yermolov served in the rear and advance guards and distinguished himself at Amstetten and Austerlitz Link Information: The Battle of Amstetten was a minor engagement during the War of the Third Coalition between the First French Empire and the alliance of Austria and Russia. It occurred on 5 November 1805 Answer: The Battle of Amstetten

Answer: Of the battles that Yermolov served in during the 1805 campaign, which occurred first?


Question: Context: and finally to the University of Michigan, where he would remain until he earned his Doctorate in 1955. Link Information: The University of Michigan (UM, U-M, U of M, or UMich), often simply referred to as Michigan, is a public research university in Ann Arbor, Michigan Answer:  Ann Arbor, Michigan

Answer:
In what city did Shea earn his doctorate?