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: The castle was built in the 13th century by Přemysl Otakar II or his son Václav II to guard royal paths and local mines. The first known owner was Mikuláš Winkler, burgrave of Loket Castle, who sold Hauenštejn to the monastery in Doksany. The monastery exchanged it for another building with King John of Luxemburg. His son Charles IV enlarged the castle‘s domain. The castle frequently changed its keepers in the second half of the 14th century and the 15th century but it more or less remained royal property. The rich family of Šlik that started silver mining near Jáchymov won the castle in the 16th century. The Šliks rebuilt the castle in the Renaissance style after a fire in 1600. In 1663 the Šliks sold the castle to the Saxe-Lauenburg ducal family and it became part of the Ostrov domain. The castle was in the hands of the Baden family from 1689. When the last male member of the family died in 1771, the property of the Badens in Bohemia was inherited by the royal family of Maria Theresa. The Habsburgs sold it to the Buquoy family in 1837. Countess Gabrielle Buquoy started to rebuild the castle in a Romantic style. Ferdinand Buquoy continued the reconstruction under the influence of historism, taking its examples from England (Windsor, Arundel, Belvoir, Lancaster or Oxford) and Bavaria (Hohenswangau, Lahneck). 
 Link Information: Ottokar II (; c. 1233 Answer: 38
answer:
What is the age difference between the father and son who may have built Hauenštejn castle?


question:
Passage: Lewis was born in Bermuda, the youngest of the three children – all boys – of Major Leonard Carey Lewis (1880–1952) and his wife, Katherine Barbara, née Sutton (1884–1965). There was a military tradition on both sides of the family, which the young Lewis did not follow: his musical talent became clear from his early years and he was sent to Salisbury Cathedral choir school, and at the age of eight he became a chorister at St George's Chapel, Windsor. At the age of 13 Lewis attended the Royal Academy of Music (RAM), London, studying composition with William Alwyn. He won a scholarship to Wellington College, from where, in 1932, he went to Peterhouse, Cambridge. There, according to The Times, he was "one of the most brilliant of his generation to have come under the influence of E.J.Dent". A scholarship enabled him to spend some months studying in Paris with Nadia Boulanger in 1934. He graduated the following year as BA and MusB.
 Link Information: In 1348, King Edward III founded two religious colleges: St Stephen's at Westminster and St George's at Windsor.  Answer: 1348
answer:
What year was the building constructed that Lewis because a chorister at when he was eight years old?


question:
Passage: At the start of the Second World War before the US entered the war, there were a large number of American volunteers offering their services. No. 71 was formed at RAF Church Fenton on 19 September 1940 with Brewster Buffalos. Appraisal by Royal Air Force acceptance personnel criticised the Brewster Buffalo on numerous points, including lack of armament and pilot armour, poor high-altitude performance, engine overheating, unreliability and cockpit controls, while it was praised for its handling, roomy cockpit and visibility. The aircraft were deemed unsuitable for European conditions and Hawker Hurricanes replaced them from November 1940. The squadron became operational at RAF Kirton-in-Lindsey on 5 February 1941 and moved in April to RAF Martlesham Heath in Suffolk for operations over Europe. During May, it suffered its first loss when Mike Kolendorski was killed during a fighter sweep over the Netherlands. The intensity of operations stepped up with a move into No 11 Group of Fighter Command, being based at RAF North Weald in Essex by June 1941. On 2 July, William J. Hall became the first Eagle Squadron pilot to become a Prisoner of War (POW) when he was shot down during an escort mission. The squadron's first confirmed victory came on 21 July 1941 during a bomber escort mission, when Pilot Officer William R. Dunn destroyed a Messerschmitt Bf 109F over Lille. In August, the Spitfire Mk II replaced 71 Squadron's Hurricanes, before the squadron quickly re-equipped with the latest Spitfire Mk VB. The unit soon established a high reputation, and numerous air kill claims were made in RAF fighter sweeps over the continent during the summer and autumn of 1941. In December, the Squadron was rested back at Martlesham Heath, before a move to Debden in May 1942. When informed of the attack on Pearl Harbor, most of the Eagle Squadron pilots wanted to immediately join the fight against Japan. Representatives from 71 and 121 Squadrons went to the American Embassy in London and offered their services to the United States. The pilots from 71 Squadron decided they wanted to go to Singapore to fight the Japanese and a proposal was put to RAF Fighter Command, but it was turned down. On 29 September 1942 the squadron, together with the other two Eagle squadrons, was transferred to the US Army Air Forces, becoming the 334th Fighter Squadron of the 4th Fighter Group.
 Link Information: Royal Air Force Church Fenton or RAF Church Fenton was a former Royal Air Force (RAF) station located south east of Tadcaster, North Yorkshire, England Answer: England
answer:

In what country was No. 71 formed?