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.

Passage: The health sector comprises 17 specialized hospitals and centers, 4 regional diagnostic and treatment centers, 9 district and 21 aimag general hospitals, 323 soum hospitals, 18 feldsher posts, 233 family group practices, 536 private hospitals, and 57 drug supply companies/pharmacies. In 2002, the total number of health workers was 33,273, of whom 6823 were doctors, 788 pharmacists, 7802 nurses, and 14,091 mid-level personnel. At present, there are 27.7 physicians and 75.7 hospital beds per 10,000 inhabitants.
Question: How many more specialized hospitals and centers is the health sector comprised of than regional diagnostic and treatment centers?
number

Passage: After 1960 public sector unions grew rapidly and secured good wages and high pensions for their members. While manufacturing and farming steadily declined, state- and local-government employment quadrupled from 4 million workers in 1950 to 12 million in 1976 and 16.6 million in 2009. In 2009 the U.S. membership of public sector unions surpassed membership of private sector unions for the first time, at 7.9 million and 7.4 million respectively. In 2011 states faced a growing fiscal crisis and the Republicans had made major gains in the 2010 elections. Public sector unions came under heavy attack especially in Wisconsin, as well as Indiana, New Jersey and Ohio from conservative Republican legislatures. Conservative state legislatures tried to drastically reduce the abilities of unions to collectively bargain.  Conservatives argued that public unions were too powerful since they helped elect their bosses, and that overly generous pension systems were too heavy a drain on state budgets.
Question: Which year had the most workers?
date

Passage: After the end of Forty Years' War in 1424, Ava gave up its dream of rebuilding the Pagan Empire. Instead, for the next six decades, it would struggle to hold on to its vassal states. Rebellions arose every time a new king came to power. The new king would have to reestablish his power all over again by gaining the fealty of all the vassal states, usually by show of force. Of these, the remote vassal state of Toungoo , tucked away in the southeastern corner across the Pegu Yoma range, proved most troublesome to successive kings at Ava. Toungoo lords rebelled against Ava in 1426-1440, 1451-1459 and 1468-1470, usually with Pegu's implicit or explicit support. Ava also faced rebellions at Mohnyin  and Prome . The beginning of the end of Ava came in 1480. The new king Minkhaung II was greeted with a multitude of rebellions but it proved to be different this time. The most serious rebellion was by his younger brother, lord of Yamethin. With a serious rebellion so close to Ava, vassal states broke away one by one. The Yamethin rebellion went on until 1500. In 1482, Minkhaung's uncle at Prome successfully revolted, the Prome Kingdom sprang into existence. Ava's vassal Shan states of Mohnyin, Mogaung, Momeik and Kale also broke away in the 1490s. Surprisingly, Ava's steadfast ally during this period was the usually restive vassal of Toungoo which remained loyal to Ava until Minkhaung's death in 1501.
Question: Which period of rebellion against Ava lasted longer, 1451-1459 or 1468-1470?

span