In this task, you're given a passage, 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 passage 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 passage or linked information.
One example is below.
Q: Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lô during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
. Link Information: Operation Market Garden was a failed World War II military operation fought in the Netherlands from 17 to 25 September 1944. Answer: from 17 to 25 September 1944
A: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin?
Rationale: The passage describes the 704th's actions during Operation Market Garden, and the answer specifies when the operation happened.
Q: Passage: Eduard Jan Bomhoff was born on 30 September 1944 in Amsterdam in a Old Catholic family as the son of Jacobus Gerardus Bomhoff a Minister and professor of literature and Riet van Rhijn. The family moved in 1957 to Leiden. Bomhoff attended the Stedelijk Gymnasium Leiden and went to Leiden University. After earning a Master of Economics there he received the Doctor of Philosophy degree in economics from the Erasmus University Rotterdam in 1979. Bomhoff worked as a lecturer in monetary policy there. He earned the rank of professor in 1981, and served as director of the Rochester-Erasmus Executive Master of Business Administration program from 1986 to 1989. He later served as a professor of finance at the Nyenrode Business Universiteit. In addition to his academic career, Bomhoff founded the institute in 1995, an economic research institute designed as an alternative to the official Bureau for Economic Policy Analysis. Bomhoff was also a columnist for the NRC Handelsblad from 1989 until 2002.
 Link Information: Leiden (, ; in English and archaic Dutch also Leyden) is a city and municipality in the province of South Holland, Netherlands Answer: Netherlands
A:
What country did Bomhoff move to in 1957?