instruction:
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.
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: Following his father's relatively early death Heinrich Sproemberg went to live with his grandfather. Link Information: 

Heinrich Dernburg (3 March 1829 – 25 November 1907) was a German jurist, professor, and politician. Born in Mainz, Grand Duchy of Hesse, he was the brother of and the maternal grandfather of the historian Heinrich Sproemberg. Answer: 

Heinrich Dernburg
answer:
What is the person Heinrich Sproemberg went to live with following his fathers death famous for?


question:
Context: celebration of the Feast of St. Joseph, primarily in New Orleans and Buffalo, Link Information: 

New Orleans (, ; ) is a consolidated city-parish located along the Mississippi River in the southeastern region of the U.S. state of Louisiana Answer: Louisiana
answer:

The two named cities in which the Feast of St. Joseph is celebrated are in what state(s)?