Problem: Constantinople had been an imperial capital since its consecration in 330 under Roman Emperor, Constantine the Great. In the following eleven centuries, the city had been besieged many times but was captured only once: during the Fourth Crusade in 1204.:304 The crusaders established an unstable Latin state in and around Constantinople while the remaining empire splintered into a number of Byzantine successor states, notably Nicaea, Epirus and Trebizond. They fought as allies against the Latin establishments, but also fought among themselves for the Byzantine throne. The Nicaeans eventually reconquered Constantinople from the Latins in 1261. Thereafter, there was little peace for the much-weakened empire as it fended off successive attacks by the Latins, the Serbians, the Bulgarians, and, most importantly, the Ottoman Turks. The Black Plague between 1346 and 1349 killed almost half of the inhabitants of Constantinople. The city was severely depopulated due to the general economic and territorial decline of the empire, and by 1453 consisted of a series of walled villages separated by vast fields encircled by the fifth-century Theodosian walls. By 1450 the empire was exhausted and had shrunk to a few square miles outside the city of Constantinople itself, the Princes' Islands in the Sea of Marmara, and the Peloponnese with its cultural center at Mystras. The Empire of Trebizond, an independent successor state that formed in the aftermath of the Fourth Crusade, also survived on the coast of the Black Sea.
Answer this question based on the article: How many years after the Nicaeans reconquered Constantinople from the Latins did the Black Plague hit?
A: 85

Problem: Around 50,000 of the former czar's army troops were stationed in Finland in January 1918. The soldiers were demoralised and war-weary, and the former serfs were thirsty for farmland set free by the revolutions. The majority of the troops returned to Russia by the end of March 1918. In total, 7,000 to 10,000 Red Russian soldiers supported the Finnish Reds, but only around 3,000, in separate, smaller units of 100-1,000 soldiers, could be persuaded to fight in the front line. The revolutions in Russia divided the Soviet army officers politically and their attitude towards the Finnish Civil War varied. Mikhail Svechnikov led Finnish Red troops in western Finland in February and Konstantin Yeremejev Soviet forces on the Karelian Isthmus, while other officers were mistrustful of their revolutionary peers and instead co-operated with General Mannerheim, in disarming Soviet garrisons in Finland. On 30 January 1918, Mannerheim proclaimed to Russian soldiers in Finland that the White Army did not fight against Russia, but that the objective of the White campaign was to beat the Finnish Reds and the Soviet troops supporting them. The number of Soviet soldiers active in the civil war declined markedly once Germany attacked Russia on 18 February 1918. The German-Soviet Treaty of Brest-Litovsk of 3 March restricted the Bolsheviks' support for the Finnish Reds to weapons and supplies. The Soviets remained active on the south-eastern front, mainly in the Battle of Rautu on the Karelian Isthmus between February and April 1918, where they defended the approaches to Petrograd.
Answer this question based on the article: How many months did the Battle of Rautu last?
A: 2

Problem: In the 2014-15 season the Rangers won the Presidents Trophy for the third time in franchise history and their seventh division title by finishing with the best record in the NHL at 53–22–7. The 53 wins and 113 points both set franchise records. The division title was the Rangers first in the Metropolitan Division, which was created during the NHLs realignment in the 2013 off-season. The team won 28 road games in the regular season, breaking the franchise record set the previous season. Over the course of the season the Rangers agreed to terms on a contract extension with Cam Talbot, Marc Staal, and Mats Zuccarello. In the playoffs the Rangers dispatched the Pittsburgh Penguins in five games in the first round. The Rangers then came back from a 3–1 series deficit to win their second-round series against the Capitals in seven games, becoming the first team in NHL history to battle back from a 3–1 deficit in back-to-back seasons and sending the Rangers to the Eastern Conference Final for the third time in four years. However, after winning the first game against the Tampa Bay Lightning, the Rangers lost Game 2 by four goals. The two teams split the first four games of the series, but the Rangers lost Game 5 by a 2–0 scoreline at home, which gave the Lightning an opportunity to clinch the conference finals in Tampa Bay. However, this did not happen in Game 6, as Derick Brassard scored a hat-trick and assisted on two other goals in an emphatic 7–3 Rangers victory to force Game 7 in New York. There, the Lightning shutout the Rangers 2–0, ending the Rangers season and marking the first occasion the Rangers had ever lost a Game 7 at home in franchise history and the first time they lost an elimination game at home since they lost to Buffalo in 2007 Stanley Cup playoffs.
Answer this question based on the article: Who won Game 7 of the 2015 Eastern Conference Final?
A:
Lightning