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.

Passage: A.P. Rosengolts was born in Vitebsk on November 4, 1889. He was the son of a Jewish merchant. He joined the Bolshevik faction of the Russian Social-Democratic Workers' Party (RSDRP) in 1905, the year of the first, abortive Russian Revolution. He worked as an insurance agent and carried out work for the Bolshevik party in Vitebsk, Kiev, Ekaterinoslav and Moscow. Rosengolts played an active role in the Revolution of 1917. He was a member of the Executive Committee of the Moscow City Council, the Moscow Military-Revolutionary Committee and the All-Russian Military-Revolutionary Committee. He was a leading officer in the Red Army and, during the Russian Civil War, worked closely with L.D. Trotsky. After the Civil War, Rosengolts worked successively for the Commissariats of Transportation and Finance and the Directorate of the Red Army Air Force. He served as ambassador to Britain from 1925 to 1927 and oversaw Soviet espionage in Britain. He became a member of the Central Committee of the Communist Party of the Soviet Union in 1927 and held various high positions in the Communist Party and the Soviet government. In 1930 he was appointed People's Commissar of Foreign Trade. On June 14, 1937, Rosengolts was dismissed from this office and on October 7, 1937, he was arrested. He was one of the defendants of the third Moscow Trial, along with Nikolai Bukharin, Alexey Rykov and other prominent Soviet officials. The accused faced a long list of capital charges, including plotting to assassinate Lenin and Stalin, espionage and sabotage. Like most of his co-defendants, Rosengolts confessed. He was convicted, sentenced to death and shot on March 15, 1938 in Moscow. He was rehabilitated in 1988.
 Link Information: Leon Trotsky (; born Lev Davidovich Bronstein; – 21 August 1940 Answer: 1940
What year did Trotsky die?

Passage: During the Battle of Midway, on 5 June, lookouts aboard Kumano spotted the surfaced USN submarine , and Kumano signaled a 45-degree simultaneous turn to avoid possible torpedoes. Kumano and Suzuya correctly made the turn, but the third vessel in line, Mikuma, made a 90-degree turn by mistake. The error resulted in a collision in which Mikuma was rammed by Mogami. Kumano returned to Kure on 23 June. On 17 July, Kumano and Suzuya were assigned to provide support for the Japanese invasion of Burma, and evaded six torpedoes fired by the Royal Dutch Navy submarine west of Perak, Malaya on 29 July. In August, Kumano and Suzuya were reassigned to support the reinforcement of Guadalcanal. During the Battle of the Eastern Solomons on 24 August, Kumano escaped without seeing combat and returned safely to Truk. However, she was attacked on 14 September north of the Solomon Islands by a flight of ten USAAF B-17 Flying Fortress bombers, and suffered light damage. During the Battle of Santa Cruz on 26 October, she provided support for Admiral Nagumo’s Carrier Strike Force, but did not see any combat. She returned to Kure on 7 November and after minor repairs, returned to Rabaul on 4 December with a cargo of troops and supplies. The cruiser continued to remain in the area on patrols and on fast transport missions through the middle of February 1943.
 Link Information: In August, Kumano and Suzuya were reassigned to support the reinforcement of Guadalcanal. During the Battle of the Eastern Solomons Answer: Battle of Midway
Which of the battles that the Kumano served in lasted the longest?

Passage: In 1773, Christian VII of Denmark surrendered Oldenburg to Catherine the Great in exchange for her son and heir Paul's share in the condominial royal-ducal government of the Duchy of Holstein and his claims to the ducal share in the government of the Duchy of Schleswig; Oldenburg went to Frederick August, Administrator of the Prince-Bishopric of Lübeck, the representative of a younger branch of the family, and in 1777 the county was raised to the rank of a duchy. The duke's son William, who succeeded his father in 1785, was a man of weak intellect, and his cousin Peter, Administrator of the Prince-Bishopric of Lübeck, acted as regent and eventually, in 1823, inherited the throne, holding the Prince-Bishopric of Lübeck and Oldenburg in personal union.
 Link Information: Christian VII (29 January 1749 – 13 March 1808) was a monarch of the House of Oldenburg who was King of Denmark–Norway and Duke of Schleswig and Holstein from 1766 until his death.  Answer: 7

How long had Christian VII been ruling Denmark for when he surrendered Oldenburg to Catherine the Great?