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: During World War II he was employed as a mathematician at the U.S. Ballistic Research Laboratory in Maryland. Link Information: During World War II he was employed as a mathematician at the U.S. Ballistic Research Laboratory in Maryland. Answer: Aberdeen Proving Ground, Maryland
answer:
What city the place in that Morrey was employed as a mathematician during World War II?


question:
Context: Karel Bossart was born on February 9, 1904 in Antwerp, Belgium. Link Information: The earliest mention of Antwerp dates from the 4th century.

In the 4th century Answer: 17
answer:
How old is the city where Bossart was born?


question:
Context: In 1919, he became leader of the Link Information: John Fraser has been interim leader since June 14, 2018 Answer: John Fraser
answer:

Who is the current leader of the party Hartley began leading in 1919?


