This task involves annotating the answer type to a given question that involve some kind of complex reasoning (including numerical reasoning). Note that the questions require looking at more than one part of the passage to answer. There are 3 possible answer types (i) spans, (ii) numbers and (iii) dates. If the answer can be found in the passage, label it as "span". If the answer is a number, label as "number". Similarly, label "date" if you think the answer to the given question is a date.
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Question: Passage: Unemployment hovered at 8-10% after the start of the economic slowdown in 1999, above the 7% average for the 1990s. Unemployment finally dipped to 7.8% in 2006, and continued to fall in 2007, averaging 6.8% monthly (up to August). Wages have risen faster than inflation as a result of higher productivity, boosting national standard of living. The percentage of Chileans with household incomes below the poverty line - defined as twice the cost of satisfying a persons minimal nutritional needs - fell from 45.1% in 1987 to 11.7% in 2015, according to government polls. Critics in Chile, however, argue that poverty figures are considerably higher than those officially published; until 2016, the government defined the poverty line based on an outdated 1987 household consumption poll, instead of more recent polls from 1997 or 2007. According to critics who use data from the 1997 poll, the poverty rate goes up to 29%; a study published in 2017 claims that it reaches 26%. Using the relative yardstick favoured in many European countries, 27% of Chileans would be poor, according to Juan Carlos Feres of the ECLAC. Starting in 2016, a new Multidimensional Poverty Index is also used, which reached 20.9% using 2015 data.
Question: How many percent difference is there between the data in the 1997 poll of the poverty rate compared to the study published in 2017?

Answer: number

Question: Passage: The Chiefs returned home to host the Steelers in an attempt to create the biggest upset of the week and get their first back-to-back wins since 2007. Optimism grew quickly as Jamaal Charles ran the opening kick 97 yards for a touchdown, starting the game with a 7-0 Chiefs lead. The Steelers dominated the rest of the first half with 20:45 time of possession, going into halftime with a 17-7 lead. The Chiefs' defense began to pressure Ben Roethlisberger in the third quarter, forcing two interceptions (both by Andy Studebaker in his first NFL start). By the fourth quarter, the Chiefs tied the game up at 17-17. The fourth quarter resulted in a touchdown each, sending the game into overtime. The Steelers won the toss in overtime, but failed to get within field goal range. Of note, Roethlisberger suffered a knee to the head concussion and was replaced by Charlie Batch. The Chiefs took over at the 20 and, after a 61-yard catch and run by Chris Chambers, Ryan Succop kicked the winning 22-yard field goal. With the win, the Chiefs improved to 3-7 and snapped a 10-game home losing streak, the longest in team history.
Question: Who had the longest reception?

Answer: span

Question: Passage: In 1939, the United States had renounced its trade treaty with Japan; and, beginning with an aviation gasoline ban in July 1940, Japan became subject to increasing economic pressure. During this time, Japan launched its first attack against Changsha, a strategically important Chinese city, but was repulsed by late September. Despite several offensives by both sides, the war between China and Japan was stalemated by 1940. To increase pressure on China by blocking supply routes, and to better position Japanese forces in the event of a war with the Western powers, Japan invaded and occupied northern Indochina. Afterwards, the United States embargoed iron, steel and mechanical parts against Japan. Other sanctions soon followed. Chinese nationalist forces launched a large-scale counter-offensive in early 1940. In August, Chinese communists launched an offensive in Central China; in retaliation, Japan instituted harsh measures in occupied areas to reduce human and material resources for the communists. Continued antipathy between Chinese communist and nationalist forces culminated in armed clashes in January 1941, effectively ending their co-operation. In March, the Japanese 11th army attacked the headquarters of the Chinese 19th army but was repulsed during Battle of Shanggao. In September, Japan attempted to take the city of Changsha again and clashed with Chinese nationalist forces.
Question: In what year did the Battle of Shanggao occur?

Answer:
date