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: Svitrigaila 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 Svitrigaila withdrew to Moldavia. The reign of Sigismund Kestutaitis was brief he was assassinated in 1440. Svitrigaila 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 Svitrigaila die?
date

Passage: Trying to snap a four-game losing streak, the Rams went home for a Week 12 duel with the Chicago Bears. In the first quarter, St. Louis trailed early as Bears RB Matt Forte got a 13-yard TD run, while QB Kyle Orton completed a 7-yard TD pass to FB Jason McKie. In the second quarter, the Rams' struggles continued as Forte got a 47-yard TD run. St. Louis would respond with kicker Josh Brown getting a 43-yard field goal. Chicago would close out the half with Gould making a 43-yard field goal. In the third quarter, the Bears pulled away with Gould nailing a 38-yard field goal. From there on out, Chicago's defense stiffened for the win.
Question: How many field goals were kicked in the game?
number

Passage: On the night of 30 October 1968, 120 men of Unit 124 landed at 8 separate locations between Ulchin and Samcheok in Gangwon province and moved inland on a 30-day mission to create guerilla bases in the Taebaek Mountains. On the morning of 31 October they entered several villages and began indoctrinating the villagers, several of whom slipped away to alert the authorities. ROKA forces soon arrived in the area aboard the UH-1 Huey's of the 6th Aviation Platoon and some of the new UH-1s provided to the ROKA under the Military Assistance Program. The 36th Homeland Defense Infantry Division, parts of two other Divisions, an ROK Marine Corps battalion, Combat Police companies, an ROK Special Forces Group and thousands of Home Defense Reserves took part in the manhunt that followed. Within two weeks most of the infiltrators had been killed. On 9 December several commandos murdered 10-year-old Lee Seung-bok and 3 other members of his family at their home on the remote northern slope of Gyebang mountain. By the time President Park suspended the operation on 26 December, 110 North Koreans had been killed and 7 captured, for the loss of 40 regular army, police and militia and 23 civilians.
Question: In what year was Lee Seung-bok killed?
date