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: Singapore did not have a native population in the true sense of the word as the population became dominated numerically by three main groups of immigrants after the British founded Singapore as a free port in the 19th century. It was estimated that when Raffles arrived in Singapore in January 1819, Singapore had about 120 Malays, 30 Chinese and some local tribes (the Orang Laut) under the rule of the Temenggung. Around 100 of these Malays had originally moved to Singapore from Johor in 1811 led by the Temenggung. Another estimate put the total population of the whole of Singapore at 1,000, mostly of various local tribes. Early census figures of Singapore show a long period of influx of migrant workers into the country, initially mostly Malays, quickly followed by the Chinese. By 1821, the population was estimated to have increased to 4,724 Malays and 1,150 Chinese. In the first census of 1824, 6,505 out of the 10,683 total were Malays and Bugis, constituting over 60% of the population. Large number of Chinese migrants started to enter Singapore just months after it became a British settlement, and they were predominantly male. In 1826, official census figures give a total population of 13,750, with 6,088 Chinese, 4,790 Malays, 1,242 Bugis, 1,021 Indians from Bengal (244) and the Coromandel Coast (777), smaller number of Javanese people (267), Europeans (87) and other peoples. The population total of Singapore increased to 16,000 in 1829, 26,000 five years later. By 1836, the Chinese at 13,749 had become the most populous ethnic group, overtaking the broad Malay grouping (12,538, including other groups such as the Bugis, Javanese, and Balinese). By the beginning of 1850, the population had reached 60,000, 24,790 of them Chinese.
Question: In what year did the Chinese population of Singapore surpass the Malay population?

SOLUTION: date

PROBLEM: Passage: Švitrigaila was losing his influence in the Slavic principalities and could no longer resist Poland and Sigismund. On 4 September 1437 he attempted to reconcile with Poland: he would rule the lands that still backed him , and after his death these territories would pass to the King of Poland. However, under strong protest from Sigismund, the Polish Senate declined to ratify the treaty . In 1438 Švitrigaila withdrew to Moldavia. The reign of Sigismund Kęstutaitis was brief — he was assassinated in 1440. Švitrigaila returned from exile in 1442 and ruled Lutsk until his death a decade later. Jogaila's son Casimir IV Jagiellon, born in 1426, received approval as a hereditary hospodar from Lithuania's ruling families in 1440. This event is seen by the historians Jerzy Lukowski and Hubert Zawadzki as marking the end of the succession dispute.
Question: What year did Švitrigaila die?

SOLUTION: date

PROBLEM: Passage: Still, the people of Liège refused to accept Burgundian rule. In October 1468, 240 rebels, under Jean de Wilde, Vincent de Bueren and Gosuin de Streel, invaded the city. In the confusion, Guy of Humbercourt and the entire Burgundian garrison fled. Liège was free again and Jean de Wilde occupied the Prince-Bishops' palace. One night, a Liège militia attacked Tongeren and killed all Burgundians there. After this, Jean de Wilde opened negotiations with Guy of Humbercourt. But Charles the Bold had other plans: he led an army towards Liège to deal once and for all with the rebellious city. He was accompanied by Louis XI of France. Several cities on their path were plundered, including Tongeren. On 22 October, a 500-strong militia that tried to stop the Burgundians at the village of Lantin were driven into the church and burned alive. Vincent de Bueren organised the defence of the city of Liège and achieved some successes with hit-and-run sorties. Jean de Wilde was mortally wounded during the raid of 26 October and died two days later. Best known is the attack by the six hundred Franchimontois in the night of 29-30 October, who sneaked out of the city and attacked the sleeping Burgundians, with the aim of killing the Duke and the King. The plan failed and all 600, including Vincent de Bueren and Gosuin de Streel, were killed. The next day, Liège surrendered, and at the command of Charles the Bold, hundreds of Liègois were tied together and thrown into the Meuse river. The city was set alight and is said to have burned for seven weeks.
Question: What was the date of Jean de Wild's death?

SOLUTION:
date