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.

[EX Q]: Passage: A single soldier arriving in Mexico in 1520 was carrying smallpox and thus initiated the devastating plagues that swept through the native populations of the Americas. The European diseases that ravaged the indigenous inhabitants of the Americas also severely affected the various Maya groups of Petén. It is estimated that there were approximately 30,000 Ch'ol and Ch'olti' Maya in western Petén at the start of the 16th century. Between 1559 and 1721 they were devastated by a combination of disease, war and enforced relocations. When Nojpetén fell in 1696 there were approximately 60,000 Maya living around Lake Petén Itzá, including a considerable number of refugees from other areas. It is estimated that 88% of the inhabitants died during the first decade of colonial rule because of disease and war. Although disease was responsible for the majority of deaths, internecine warfare between rival Maya groups and Spanish expeditions also took their toll.
Question: How many of the 60,000 Mayan died?
[EX A]: number

[EX Q]: Passage: The Second Goryeo-Khitan War was an 11th-century conflict between the kingdom of Goryeo and the Liao dynasty  near what is now the border between China and North Korea. It was the second of the Goryeo-Khitan Wars, with the First Goryeo-Khitan War occurring in 993, the second in 1010, and the third in 1018. When King Seongjong died in 997, Liao invested his successor Wang Song as king of Goryeo . In 1009, he was assassinated by the forces of the general Gang Jo. Using it as a pretext, the Liao attacked Goryeo in the next year. They lost the first battle but won the second one, and Gang Jo was captured and killed. The Liao occupied and burnt the Goryeo capital Kaesong. The Khitan withdrew after Goryeo reaffirmed its tributary relationship with the Khitan.
Question: How did Wang Song die?
[EX A]: span

[EX Q]: Passage: The Finnish Red Guards seized the early initiative in the war by taking control of Helsinki on 28 January 1918 and by undertaking a general offensive lasting from February till early March 1918. The Reds were relatively well armed, but a chronic shortage of skilled leaders, both at the command level and in the field, left them unable to capitalise on this momentum, and most of the offensives came to nothing. The military chain of command functioned relatively well at company and platoon level, but leadership and authority remained weak as most of the field commanders were chosen by the vote of the troops. The common troops were more or less armed civilians, whose military training, discipline and combat morale were both inadequate and low. Ali Aaltonen was replaced on 28 January 1918 by Eero Haapalainen as commander-in-chief. He, in turn, was displaced by the Bolshevik triumvirate of Eino Rahja, Adolf Taimi and Evert Eloranta on 20 March. The last commander-in-chief of the Red Guard was Kullervo Manner, from 10 April until the last period of the war when the Reds no longer had a named leader. Some talented local commanders, such as Hugo Salmela in the Battle of Tampere, provided successful leadership, but could not change the course of the war. The Reds achieved some local victories as they retreated from southern Finland toward Russia, such as against German troops in the Battle of Syrjäntaka on 28-29 April in Tuulos.
Question: How many months did the offensive against Helsinki last?
[EX A]:
number