instruction:
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.
question:
Passage: Spindler was born in odz, Poland, to an ethnic German family. He was the son of Gertrud Alma (nee Bernewitz) and Oskar Karl Spindler; his father was a businessman. Spindler was considered part of the Volksdeutsche by the Nazi regime, and after the German invasion of Poland in 1939 was required to join the Deutsches Jungvolk (part of the Hitler Youth). When Germany's Eastern Front collapsed in 1944, Spindler and other children of odz were evacuated to a rural estate north of the city. In January 1945, he and his companions were forced to flee west on foot to escape the advancing Red Army; many of them were killed by starvation, exposure, or bombing raids. Spindler was eventually reunited with his family in Magdeburg, and they settled in Weienfels, Saxony-Anhalt, which became part of the Soviet occupation zone and later East Germany. He was blacklisted from attending university due to his anti-Soviet views, and at the age of 17 was granted permission to move to Australia, sponsored by a relative who had settled in Melbourne.
Link Information: By 1940, it had eight million members.
Answer: eight million
answer:
How many children were part of the Hitler Youth the year the German Eastern Front collapsed?

question:
Passage: Sigursson worked on monitoring and research of the volcanoes of the Caribbean until 1974, when he was appointed professor at the Graduate School of Oceanography, University of Rhode Island. He is best known for his work on the reconstruction of major volcanic eruptions of the past, including the eruption of Vesuvius in Italy in AD 79 and the consequent destruction of the Roman cities of Pompeii and Herculaneum. In 1991 he discovered tektite glass spherules at the CretaceousPaleogene boundary (KT boundary) in Haiti, providing proof for a meteorite impact at the time of the extinction of the dinosaurs. In 2004 he discovered the lost town of Tambora in Indonesia, which was buried by the colossal 1815 explosive eruption of Tambora volcano. In 1999, Haraldur Sigurdsson published a scholarly account of the history of volcanology. He was also editor in chief of the Encyclopedia of Volcanoes, also published in 1999. He was awarded the Coke Medal of the Geological Society of London in 2004.
Link Information: The University of Rhode Island, commonly referred to as URI, is the flagship public research as well as the land grant and sea grant university for the state of Rhode Island Answer: Rhode Island
answer:
In which state did Sigurosson teach at the Graduate School of Oceanography?

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Passage: Following the establishment of the Tokugawa shogunate, the Maeda clan were confirmed as daimyo of Kaga Domain, which included most of Etchu Province. Maeda Toshinaga, the son of Maeda Toshiba and second daimyo of Kaga Domain rebuilt the castle and temporarily used it as his retirement home until much of it burned down in 1609. His grandson, Maeda Toshitsugu was awarded a 100,000 koku holding in Etchu Province in 1639, the forming Toyama Domain; however, initially his fief did not include Toyama Castle. Unable to raise funds to build his own castle, in 1659 he reached an agreement with Kaga Domain to exchange some of holdings for Toyama Castle and the surrounding lands. In 1661, he received permission from the Tokugawa shogunate to rebuild the castle and to lay out a new castle town. His descendants ruled over Toyama from here until the Meiji Restoration. Many of the structures of the castle and its rampant were destroyed by the 1858 Hietsu earthquake, and most of what survived was destroyed by order of the new Meiji government in 1871.
Link Information: the Meiji Renovation, Revolution, Reform, or Renewal, was an event that restored practical imperial rule to the Empire of Japan in 1868 under Emperor Meiji Answer: 1868
answer:
What year did the Toshitsugu descendants stop ruling over Toyama castle?