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 Input:
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: which battle did Liao win?

Ex Output:
span

Ex Input:
Passage: From 1623 to 1624 the Dutch had been at war over the Pescadores, and in 1633 clashed with a fleet led by Zheng Zhilong in the Battle of Liaoluo Bay, ending in another Dutch defeat. By 1632 the Dutch had established a post on a peninsula named Tayoan , which was separated from the main part of Formosa by a shallow lagoon historically referred to as the Taikang inland sea. The Dutch fortifications consisted of two forts along the bay: the first and main fortification was the multiple-walled Fort Zeelandia, situated at the entrance to the bay, while the second was the smaller Fort Provintia, a walled administrative office. Frederick Coyett, the governor of Taiwan for the Dutch East India Company, was stationed in Fort Zeelandia with 1,800 men, while his subordinate, Valentyn, was in charge of Fort Provintia and its garrison of 500 men. In 1659, after an unsuccessful attempt to capture Nanjing, Koxinga, son of Zheng Zhilong and leader of the Ming loyalist remnants, felt that the Qing Empire had consolidated their position in China sufficiently, while his troops needed more supplies and manpower. He began searching for a suitable location as his base of operations, and soon a Chinese man named He Bin , who was working for the Dutch East India Company in Formosa , fled to Koxinga's base in Xiamen and provided him with a map of Taiwan.
Question: Which forts belonged to the Dutch?

Ex Output:
span

Ex Input:
Passage: The defeat at Ngasaunggyan broke the back of Burmese defenses. The Burmese army lost several thousand men as well as senior commanders. Kaungsin, the next fort inline, fell just six days later on 9 December 1283. The Mongol sources say that the Burmese lost 10,000 men at Kaungsin. The Mongol armies pushed farther south into the Irrawaddy valley. They took the ancient Burmese capital of Tagaung, about 380km north of Pagan on 5 February 1284. There, the invaders paused their advance. They found the heat of the searing Irrawaddy valley excessive, and evacuated Tagaung, allowing the Burmese to return to Tagaung on 10 May 1284. But the Mongol army renewed their offensive in the following dry season. They retook Tagaung, and defeated another Burmese stand south of Tagaung, probably near Hanlin, on 26 January 1285, opening the way to Pagan, about 270km south. After the defeat, the king panicked, and fled to Lower Burma. The evacuation proved premature. The Mongol forces did not advance on Pagan as it was not part of their invasion plan. The country fell into chaos. In Lower Burma, the king found himself isolated, let alone plan a counterattack. Although his sons ruled the key Lower Burma ports , the king did not trust any of them, and he and his court settled at Hlegya, west of Prome. Without the full support of his sons, the presence of the king and his small army impressed no one. The governor of Pegu revolted that same year. The king managed to send two small expeditions to Pegu but they both failed. Now, the entire eastern half of Lower Burma was in open revolt.
Question: On what date did the Burmese army lose several thousand men as well as senior commanders?

Ex Output:
date