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: In 1774, he was appointed to minister of state to Louis XVI, as well as chief adviser, holding both positions until 1781. Link Information: Louis XVI (; 23 August 1754 – 21 January 1793 Answer: 27
How old was Louis XVI when he appointed Maurepas his chief advisor?

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: nd the Military Security Shield Forces were among the pro-government units that sent reinforcements to help defend the nearby Tiyas Military Airbase from the next Islamist attack. Link Information: The Tiyas Military Airbase, also known as the T-4 Airbase is a Syrian Arab Air Force (SyAAF) base located in the Homs Governorate, north of Tiyas, and west of the ancient city of Palmyra, Syria. Answer: Syria

Where is the Tiyas Military Airbase?