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.

Ex Input:
Passage: The effects of flooding can be devastating and cause significant damage to crops and houses, serious bank erosive with consequent loss of homesteads, school and land, and loss of many lives, livestock and fisheries. During the 1998 flood, over 70% of the land area of Bangladesh was inundated, affecting 31 million people and 1 million homesteads. In the 1998 flood which had an unusually long duration from July to September, claimed 918 human lives and was responsible for damaging 16 00 and 6000 km of roads and embankments respectively, and affecting 6000 km2 of standing crops. The 2004 floods, over 25% of the population of Bangladesh or 36 million people, was affected by the floods; 800 lives were lost; 952 000 houses were destroyed and 1.4 million were badly damaged; 24 000 educational institutions were affected including the destruction of 1200 primary schools, 2 million governments and private tubewells were affected, over 3 million latrines were damaged or washed away, this increases the risks of waterborne diseases including diarrhea and cholera. Also, 1.1 M ha of rice crop was submerged and lost before it could be harvested, with 7% of the yearly aus (early season) rice crop lost; 270 000 ha of grazing land was affected, 5600 livestock perished together with 254 00 poultry and 63 MT of lost fish production.

Ex Output:
How many average people were affected per homestead?

Ex Input:
Passage: The index reached a relative intraday highwhich was not exceeded for over seven yearsof 1,552.87, on March 24, 2000, during the dot-com bubble. The index then declined by approximately 50%, to 768.63, on October 10, 2002, during the stock market downturn of 2002. On May 30, 2007, the S&P 500 closed at 1,530.23, to set its first all-time closing high in more than seven years. Although the index achieved a new all-time intraday high on October 11, 2007, at 1,576.09, following a record close of 1,565.15 on October 9, the index finished 2007 at 1,468.36 pointsjust below its 1999 annual close. Less than a month later, it dropped to 1,400, and would not see similar levels again for five years.

Ex Output:
How many points had the index gained from October 10, 2002 to October 11, 2007?

Ex Input:
Passage: The fifth generation of Pokemon began on September 18, 2010, with the release of Pokemon Black and White in Japan for Nintendo DS. The games were originally announced by the Pokemon Company on January 29, 2010, with a tentative release later that year. The final release date of September 18 was announced on June 27, 2010. This version is set in the , inspired by New York City, and utilizes the Nintendo DSs 3D rendering capabilities to a greater extent than Platinum, HeartGold, and SoulSilver. A total of 156 new Pokemon were introduced, starting with Victini and ending with Genesect, bringing the franchises total to 649. This is the only time that the number of Pokemon introduced surpasses the number introduced in the first generation. It also deployed new game mechanics such as the wireless interactivity features and the ability to upload game data to the Internet and to the players own computer. Pokemon Black and White was released in Europe on March 4, 2011, in North America on March 6, 2011, and in Australia on March 10, 2011. On June 23, 2012, Nintendo released Pokemon Black 2 and White 2 in Japan for Nintendo DS, with early October releases in North America and Europe. Black 2 and White 2 are sequels to Black and White, with several events in the second games referencing events in the first; they also allow players to link their previous Black or White with their Black 2 or White 2, introducing several events based on how they played their previous game.

Ex Output:
How many Pokemon were there prior to the 156 new ones?