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: Following the withdrawal of the SNA, the WSLF continued their insurgency. By May 1980, the rebels, with the assistance of a small number of SNA soldiers who continued to help the guerrilla war, controlled a substantial region of the Ogaden. However, by 1981 the insurgents were reduced to sporadic hit-and-run attacks and were finally defeated. In addition, the WSLF and SALF were significantly weakened after the Ogaden War. The former was practically defunct by the late 1980s, with its splinter group, the Ogaden National Liberation Front  operating from headquarters in Kuwait. Even though elements of the ONLF would later manage to slip back into the Ogaden, their actions had little impact. For the Barre regime, the invasion was perhaps the greatest strategic blunder since independence, and it weakened the military. Almost one-third of the regular SNA soldiers, three-eighths of the armored units and half of the Somali Air Force  were lost. The weakness of the Barre administration led it to effectively abandon the dream of a unified Greater Somalia. The failure of the war aggravated discontent with the Barre regime; the first organized opposition group, the Somali Salvation Democratic Front , was formed by army officers in 1979. The United States adopted Somalia as a Cold War ally from the late 1970s to 1988 in exchange for use of Somali bases, and a way to exert influence upon the region. A second armed clash in 1988 was resolved when the two countries agreed to withdraw their militaries from the border.
Question: When did the WSLF lose control over a substantial region of the Ogaden?

Ex Output:
date


Ex Input:
Passage: Hoping to increase their winning streak the Chiefs flew to Cleveland Browns Stadium for an AFC duel with the Browns. In the first quarter the Chiefs took the early lead when kicker Ryan Succop nailed a 35-yard field goal. The Chiefs fell behind in the 2nd quarter when RB Peyton Hillis completed a 1-yard TD run, but got back in the game when CB Brandon Flowers returned an interception 33 yards to the endzone for a touchdown. The Chiefs trailed again as QB Seneca Wallace made a 65-yard TD pass to WR Josh Cribbs. The Chiefs cut the lead in the 3rd quarter when Ryan Succop made a 26-yard field goal and then a 23-yard field goal in the fourth quarter, giving Kansas City the win.
Question: How many yards was the shortest field goal?

Ex Output:
number


Ex Input:
Passage: In the end, Sigismund did not succeed in becoming tsar or in securing the throne for Władysław, but he was able to expand the Commonwealth's territory. During his reign Poland was the largest and most populous country in Europe. On 11 December 1618 the Truce of Deulino,:567 which concluded the Dimitriad's war, gave the Commonwealth control over some of the conquered territories, including the territories of Chernigov and Severia  and the city of Smolensk, and proclaimed a 15-year truce. Władysław refused to relinquish his claim to the Russian throne, even though Sigismund had already done so. While the Commonwealth gained some territories in the east, in terms of finance and lives it was a very costly victory. In 1632 the Truce of Deulino expired, and hostilities immediately resumed in the course of a conflict known as the Smolensk War.:587 This time the war was started by the Russians, who tried to exploit the suspected weakness of the Commonwealth after the unexpected death of Sigismund III.:587 However, they failed to regain Smolensk. Mikhail Shein surrendered to Władysław IV on 1 March 1634, and the Russians accepted the Treaty of Polyanovka in May 1634.:587 The Russians had to pay 20,000 rubles to the Commonwealth, but Władysław relinquished his claim to the Russian throne:587 and recognized Michael as the legitimate tsar of Russia, also returning the Russian royal insignia.
Question: What month did Russia accept the treaty?

Ex Output:

date