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: The Mavericks raised their championship banner prior to their Finals rematch with the Heat on Christmas Day, but in what would soon become a mirror image of the 2006–07 Miami Heat seasons eventual failed title defense, Miami blew them out in a 105–94 loss, marking Dallass first regular-season loss to Miami in eight seasons. Things did not get better for Dallas after starting the season 0–3, losing to the Thunder in a playoff rematch on December 29. As the calendar turned to 2012, the Mavericks won 13 of 18 games in January, but they posted a 22–22 record the rest of the way, eventually finishing 7th with a 36–30 record, their lowest finish since the 2007–08 season. Nowitzki produced 21.6 points, 6 rebounds and 45.7% shooting, his lowest numbers since the 2000–01 season. Meanwhile, Odom proved to be a bad fit for the Mavericks, and they decided to sit him out for the final two months of the season.
Question: What year did Dallas see their first loss to the Miami heat during regular season in eight years?

SOLUTION: date

PROBLEM: Passage: The Greek Navy was relatively modern, strengthened by the recent purchase of numerous new units and undergoing reforms under the supervision of a British mission. Invited by Prime Minister Venizelos in 1910, the mission began its work upon its arrival in May 1911. Granted extraordinary powers and led by Vice Admiral Lionel Grand Tufnell, it thoroughly reorganized the Navy Ministry and dramatically improved the number and quality of exercises in gunnery and fleet maneuvers. In 1912, the core unit of the fleet was the fast armoured cruiser Georgios Averof, completed in 1910 and, at that time, the fastest and most modern warship in the combatant navies. It was complemented by three rather antiquated battleships of the Hydra class. There were also eight destroyers built in 1906-1907, and six new destroyers that were hastily bought in summer 1912 as the imminence of war became apparent. Nevertheless, at the outbreak of the war, the Greek fleet was far from ready. The Ottoman battlefleet retained a clear advantage in number of ships, speed of the main surface units and, more importantly, in the number and caliber of the ships' guns. In addition, as the war caught the fleet in the middle of its expansion and reorganization, fully a third of the fleet  only reached Greece after hostilities had started, forcing the navy to reshuffle crews, who consequently suffered from lacking familiarization and training time. Coal stockpiles and other war stores were also in short supply, while the Georgios Averof had arrived with barely any ammunition, and would remain so until late November.
Question: What is the latter year when eight destroyers were built?

SOLUTION: date

PROBLEM: Passage: The war is known by several names. "Polish-Soviet War" is the most common but other names include "Russo-Polish War  of 1919-1921"  and "Polish-Bolshevik War". This second term ) is most common in Polish sources. In some Polish sources it is also referred as the "War of 1920" . There is disagreement over the dates of the war. The Encyclopædia Britannica begins its article with the date range 1919-1920 but then states, "Although there had been hostilities between the two countries during 1919, the conflict began when the Polish head of state Józef Pilsudski formed an alliance with the Ukrainian nationalist leader Symon Petlyura  and their combined forces began to overrun Ukraine, occupying Kiev on 7 May." The Polish Internetowa encyklopedia PWN, as well as Western historians such as Norman Davies, consider 1919 the starting year of the war. The ending date is given as either 1920 or 1921; this confusion stems from the fact that while the ceasefire was put in force in the autumn of 1920, the official treaty ending the war was signed months later, in March 1921. While the events of 1919 can be described as a border conflict, and only in early 1920 did both sides engage in all-out war, the conflicts that took place in 1920 were an inevitable escalation of fighting that began in earnest a year earlier. In the end, the events of 1920 were a logical, though unforeseen, consequence of the 1919 prelude.
Question: When did the earliest figihting occur in the Polish-Soviet War?

SOLUTION:
date