This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning). 
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.

Input: Consider Input: 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.

Output: How many more people populated the city in 2001 than in 1991?


Input: Consider Input: Passage: Obesity is one of the leading preventable causes of death worldwide. A number of reviews have found that mortality risk is lowest at a BMI of 20–25 kg/m2 in non-smokers and at 24–27 kg/m2 in current smokers, with risk increasing along with changes in either direction. This appears to apply in at least four continents. In contrast, a 2013 review found that grade 1 obesity (BMI 30–35) was not associated with higher mortality than normal weight, and that overweight (BMI 25–30) was associated with "lower" mortality than was normal weight (BMI 18.5–25). Other evidence suggests that the association of BMI and waist circumference with mortality is U- or J-shaped, while the association between waist-to-hip ratio and waist-to-height ratio with mortality is more positive. In Asians the risk of negative health effects begins to increase between 22–25 kg/m2. A BMI above 32 kg/m2 has been associated with a doubled mortality rate among women over a 16-year period. Obesity in the United States, obesity is estimated to cause 111,909 to 365,000 deaths per year, while 1 million (7.7%) of deaths in Europe are attributed to excess weight.  On average, obesity reduces life expectancy by six to seven years, a BMI of 30–35 kg/m2 reduces life expectancy by two to four years, while severe obesity (BMI > 40 kg/m2) reduces life expectancy by ten years.

Output: What BMI reduces life expectancy for ten years, BMI of 30–35 kg/m2 or BMI > 40 kg/m2?


Input: Consider Input: Passage: Although the putsch has been named after Wolfgang Kapp, a 62-year-old nationalist East Prussian civil servant, who had been planning a coup against the republic for a while, it was instigated by the military; Kapp played a supporting role.:217:50 On 29 February 1920, the Defence Minister Noske ordered the disbandment of two of the most powerful Freikorps, the Marinebrigade Loewenfeld and Marinebrigade Ehrhardt. The latter numbered from 5,000-6,000 men and had been stationed at the Truppenübungsplatz Döberitz, near Berlin, since January 1920.:217 An elite force, it had been created from former Imperial Navy officers and NCOs, boosted later by Baltikumer . During the civil war in 1919, the brigade had seen action in Munich and Berlin. It was extremely opposed to the democratic government of Friedrich Ebert.:217 Its commander, Korvettenkapitän Hermann Ehrhardt, declared that the unit would refuse its dissolution.:51 On 1 March, it staged a parade without inviting Noske.:218 General Walther von Lüttwitz, in command of all the regular troops in and around Berlin , the highest ranking general in the army at the time and in command of many Freikorps, said at the parade that he would "not accept" the loss of such an important unit. Several of Lüttwitz' officers were horrified at this open rejection of the government's authority and tried to mediate, by setting up a meeting between Lüttwitz and the leaders of the two major right-wing parties. Lüttwitz listened to and remembered their ideas but was not dissuaded from his course of action.:218 Noske then removed the Marinebrigade from Lüttwitz' command and assigned it to the leadership of the Navy, hoping that they would disband the unit. Lüttwitz ignored the order but agreed to a meeting with President Ebert, suggested by his staff.


Output: How many Freikorps were disband?