instruction:
This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.
question:
Passage: The Bison football team was the winningest program in NCAA Football history with thirty-three conference championships and eight national championships (1965, 1968, 1969, 1983, 1985, 1986, 1988, 1990) before moving to Division I Championship Subdivision in 2004. In January 2012, NDSU defeated Sam Houston State University in the NCAA Division I Football Championship game becoming the 2011 season National Champions. NDSU football is a major event in the city of Fargo and the region, averaging over 18,000 fans per home game.  The Bison play their home games at the Fargodome (cap. 19,287). In January 2013, NDSU football won the NCAA Division I championship title for a second year in a row, defeating Sam Houston again. They also defeated Kansas State and hosted College GameDay (football). In January 2014, NDSU defeated Towson to win its 3rd consecutive national championship in FCS football.  It is only the 2nd team in NCAA history to achieve this feat. NDSU also defeated FBS Iowa State for their 6th consecutive win over an FBS opponent and hosted ESPN College Gameday for the 2nd straight season. January 2015, for the 2014 season, NDSU defeated Illinois State to win its 4th consecutive national championship in FCS football. The feat had never been accomplished in Division I football.  In the 2015 season, NDSU defeated Jacksonville State for a record 5th consecutive NCAA Division I FCS national championship. No football team in the modern history of the NCAA has accomplished this feat. In the 2016 season, NDSU was defeated by James Madison, 27-17, who eventually went on to win the championship. Thus ending the Bisons reign of 5 consecutive championships. The following season the Bison went on to win the FCS National Championship again for the sixth time in seven years, by beating James Madison 17-13. 
Question: How many times before 1990 did exactly two years pass between the national championships won by the Bison? 
Answer type: Number 
answer:
3.


question:
Passage: Hoping to rebound from their home loss to the Chargers, the Titans flew to Arrowhead Stadium for a Week 15 intraconference duel with the Kansas City Chiefs. In the first quarter, Tennessee drew first blood as QB Vince Young completed a 16-yard TD pass to WR Roydell Williams for the only score of the period. In the second quarter, the Chiefs tied the game with QB Brodie Croyle completing a 10-yard TD pass to WR Samie Parker. Afterwards, the Titans responded with kicker Rob Bironas managing to get a 37-yard field goal. Kansas City would take the lead prior to halftime with Croyle completing a 9-yard TD pass to FB Kris Wilson. In the third quarter, Tennessee would draw close as Bironas kicked a 37-yard field goal. The Chiefs answered with kicker John Carney getting a 36-yard field goal. Afterwards, the Titans would retake the lead with Young and Williams hooking up with each other again on a 41-yard TD pass. In the fourth quarter, Tennessee clinched the victory with Bironas nailing a 40-yard and a 25-yard field goal. With the win, the Titans kept their playoff hopes alive at 8-6. 
Question: How many yards long was the longest TD pass of the game? 
Answer type: Number 
answer:
41.


question:
Passage: Although nominally part of the Ottoman Empire, Yemen and the sahil  came progressively under the control of Muhammad Ali, ruler of Egypt, between 1821 and 1841. After the Egyptians withdrew from the Yemeni seaboard in 1841, Haj Ali Shermerki, a successful and ambitious Somali merchant, purchased from them executive rights over Zeila. Shermerki's governorship had an instant effect on the city, as he manoeuvred to monopolize as much of the regional trade as possible, with his sights set as far as Harar and the Ogaden. Shermerki was later succeeded as Governor of Zeila by Abu Bakr Pasha, a local Afar statesman. In 1874-75, the Egyptians obtained a firman from the Ottomans by which they secured claims over the city. At the same time, the Egyptians received British recognition of their nominal jurisdiction as far east as Cape Guardafui. In actuality, however, Egypt had little authority over the interior and their period of rule on the coast was brief, lasting only a few years . The British Somaliland protectorate was subsequently established in the late 1880s, after the ruling Somali authorities signed a series of protection treaties granting the British access to their territories on the northwestern coast. Among the Somali signatories were the Gadabuursi , Habar Awal , and Warsangali. When the Egyptian garrison in Harar was eventually evacuated in 1885, Zeila became caught up in the competition between the Tadjoura-based French and the British for control of the strategic Gulf of Aden littoral. By the end of 1885, the two powers were on the brink of armed confrontation, but opted instead to turn negotiations. They later signed a convention on 1 February 1888 defining the border between French Somaliland and British Somaliland. 
Question: How many years did it take Yemen and the sahil to come under control of Muhammad Ali? 
Answer type: Number 
answer:

20.