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 First Utrecht Civil War took place between 1470 and 1474 when the Hook and Cod wars spilled over into the Bishopric of Utrecht. David of Burgundy, illegitimate son of Philip the Good, Duke of Burgundy had been appointed as bishop of Utrecht in 1456 with support of the Cods. The Utrecht chapters, however, had elected the Hook-favoured provost Gijsbrecht van Brederode as bishop. But Philip the Good used force to make David's appointment be accepted. Nevertheless, opposition against his rule remained, and David of Burgundy even found it safer to leave the city of Utrecht and take up residence in Wijk bij Duurstede. The van Brederode family was at the center of the opposition. In 1470, David of Burgundy imprisoned Gijsbrecht van Brederode and his brother Reinoud II van Brederode, and had them tortured. This action stirred up the century old animosity between the Hooks who supported the family van Brederode and the Cods who supported Burgundy. A civil war broke out that lasted until 1474.The status-quo returned, until a Second Utrecht Civil War broke out in 1481.
Question: Why did he take up residence in Wijk bij Duurstede?

Ex Output:
span

Ex Input:
Passage: Through the 1990s and into the 2000s, the city diversified its economy; manufacturing now employs 16.9 percent of Allen Countys workforce. Other sectors include distribution, transportation, and logistics (23.1 percent), health care (17.9 percent), professional and business services (12.1 percent), leisure and hospitality (11.1 percent), and financial services (6.3 percent). The leisure and hospitality sector has especially grown, with 5.8 million visitors spending $545 million in 2013, a 4.3 percent increase over the previous year. The city is a center for the defense industry, employing thousands at such companies as BAE Systems Inc. (1,150), Harris Corporation (888), Raytheon Systems (950), and the Fort Wayne Air National Guard Station (423).
Question: Who employs the fewest people in the defense industry?

Ex Output:
span

Ex Input:
Passage: While Burma had its hands full with the Ming Chinese invasions, Siam's King Narai attempted to pick off the upper Tenasserim coast and Lan Na. He got Martaban to switch sides in March 1662, and occupied the coast. Fortunately for the Burmese, their troubles with the Ming were over. Their land and naval units recaptured Martaban and Tavoy by December 1662. They followed up on the retreating Siamese but were driven back near Kanchanaburi with heavy losses. Meanwhile, a much larger Siamese army invaded Lan Na, catching the Burmese command completely off guard. The Siamese captured Chiang Mai on 10 February 1663, and drove back Burmese forces that arrived belatedly. In November 1663, Siam launched a two-pronged invasion of the Tenasserim coast: Martaban and Moulmein in the north and Tavoy in the south. Burmese defences withstood several Siamese onslaughts until May 1664 when the invaders retreated before the rainy season arrived. Meanwhile, the Siamese garrison at Chiang Mai was holed up in a deserted city, and its troops were constantly ambushed by resistance forces whenever they ventured out of the city. In late November 1664, the Siamese evacuated Chiang Mai, and returned. This was the last major war between the two kingdoms until 1760 although they traded small raids in 1675-1676, and in 1700-1701.
Question: How many years did Siam two pronged Tanasserin coast invasion last until they retreated?

Ex Output:
number