TASK DEFINITION: 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.
PROBLEM: Passage: According to the 2010 United States Census, the City and County of Denver contained 600,158 people and 285,797 households. The population density was 3,698 inhabitants per square mile (1,428/km) including the airport. There were 285,797 housing units at an average density of 1,751 per square mile (676/km). However, the average density throughout most Denver neighborhoods tends to be higher. Without the 80249 zip code (47.3 sq mi, 8,407 residents) near the airport, the average density increases to around 5,470 per square mile.Age distribution was 22.0% under the age of 18, 10.7% from 18 to 24, 36.1% from 25 to 44, 20.0% from 45 to 64, and 11.3% who were 65 years of age or older. The median age is 33 years. Overall there were 102.1 males for every 100 females, but in 2015 for the category of never-married ages 25 to 34, there were 121.4 males for every 100 females. Due to a skewed sex ratio wherein single men outnumber single women, some protologists have nicknamed the city as Menver.
Question: Which age group populated Denver less, those under the age of 18 or 18 to 44?

SOLUTION: span

PROBLEM: Passage: The 2010 maternal mortality rate per 100,000 births for Guinea Bissau was 1000. This compares with 804.3 in 2008 and 966 in 1990. The under-5 mortality rate, per 1,000 births, was 195 and the neonatal mortality as a percentage of under-5 mortality was 24. The number of midwives per 1,000 live births was 3; one out of eighteen pregnant women die as a result of pregnancy. According to a 2013 UNICEF report, 50% of women in Guinea Bissau had undergone female genital mutilation. In 2010, Guinea Bissau had the seventh-highest maternal mortality rate in the world.
Question: Was the maternal mortality rate per 100,000 births in Guinea Bissau higher in 2010 or 2008?

SOLUTION: date

PROBLEM: Passage: The Azov campaigns of 1695-96 , were two Russian military campaigns during the Russo-Turkish War of 1686-1700, led by Peter the Great and aimed at capturing the Turkish fortress of Azov , which had been blocking Russia's access to the Azov Sea and the Black Sea. Since the Crimean campaigns of 1687 and 1689 had failed because of the difficulty of moving a large army across the steppe, Peter decided to try a river approach.
Question: How many years did the Russo-Turkish War last?

SOLUTION:
number