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: In the late 16th and early 17th centuries, Russia was in a state of political and economic crisis. After the death of the Tsar Ivan IV  in 1584, and the death of his son Dimitri in 1591, several factions competed for the tsar's throne. In 1598, Boris Godunov was crowned to the Russian throne, marking the end of the centuries long rule of the Rurik dynasty. While his policies were rather moderate and well-intentioned, his rule was marred by the general perception of its questionable legitimacy and allegations of his involvement in orchestrating the assassination of Dimitri. While Godunov managed to put the opposition to his rule under control, he did not manage to crush it completely. To add to his troubles, the first years of the 17th century were exceptionally cold. The drop in temperature was felt all over the world, and was most likely caused by a severe eruption of a volcano in South America. In Russia, it resulted in a great famine that swept through the country from 1601 to 1603. 
Question: How many years did the great famine last that swept through Russia? 
Answer type: Number 

Answer: 2.


Question: Passage: Coming off their shutout home win over the Seahawks, the Steelers flew to Lucas Oil Stadium for a primetime game against the Indianapolis Colts on Sunday night (Pittsburgh's first primetime game of the year).  Pittsburgh scored first in the first quarter with a 48-yard field goal by kicker Shaun Suisham, followed by quarterback Ben Roethlisberger finding wide receiver Mike Wallace on an 81-yard touchdown pass.  The Colts answered in the second quarter with kicker Adam Vinatieri getting a 21-yard field goal, followed by defensive end Jamaal Anderson returning a Roethlisberger fumble caused by Dwight Freeney 47 yards for a touchdown. Vinatieri got another 25-yard field goal before the end of the half.  After a scoreless third quarter, the Steelers regained the lead in the fourth quarter with a 44-yard field goal from Suisham, followed by safety Troy Polamalu returning a fumble forced by James Harrison 16 yards for a touchdown.  However, Indianapolis replied with running back Joseph Addai getting a 6-yard touchdown run. Pittsburgh prevailed, however, with Shuisham hitting a game-winning 38-yard field goal with 4 seconds remaining. 
Question: How many yards was the longest field goal? 
Answer type: Number 

Answer: 48.


Question: Passage: Over the years the city has been home to people of various ethnicities, resulting in a range of different traditions and cultural practices. In one decade, the population increased from 427,045 in 1991 to 671,805 in 2001. The population was projected to reach 915,071 in 2011 and 1,319,597 by 2021. To keep up this population growth, the KMC-controlled area of  has expanded to  in 2001. With this new area, the population density which was 85 in 1991 is still 85 in 2001; it is likely to jump to 111 in 2011 and 161 in 2021. 
Question: How many years would it take from 1991 for the population to increase to 1319597, according to projections? 
Answer type: Number 

Answer:
30.