instruction:
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.
question:
Passage: After the Lithuanians were defeated in the Battle of Strėva by the Teutonic Knights in 1348, Liubartas lost all territories except for eastern Volhynia with Lutsk to Casimir and his ally Louis I of Hungary . Liubartas' brothers Algirdas and Kęstutis organized several expeditions to Poland and Red Ruthenia. Lithuanians allied themselves with Muscovy: Liubartas married an unnamed daughter of Konstantin of Rostov, a relative of Simeon of Moscow, and Algirdas married Uliana of Tver, sister-in-law of Simeon. In spring 1351, Lubartas was taken prisoner by Louis, but was released in summer after a truce was agreed upon with Kęstutis. The deal fell through and more military attacks followed in 1352. Another truce, rather favorable to the Lithuanians, was signed in fall 1352: Lubartas received not only Volhynia and Podolia, but also Belz and Chełm. However, already in 1353, Liubartas attacked again. Casimir responded by organizing a large campaign against the pagan Lithuanians with a special permission from Pope Innocent VI. After the campaign did not achieve the desired results, Casimir contemplated an alliance with the Lithuanians. In 1366, Casimir, allied with Siemowit III of Masovia and nephews of Liubartas, resumed the war. As Algirdas was involved in conflicts in the east and Kęstutis fought with the Teutonic Knights, Liubartas had to defend alone and was defeated. In fall 1366, a treaty was signed: Liubartas retained only eastern Volhynia with Lutsk and became somewhat dependent on Poland . Casimir awarded his allies: Yuri, son of Karijotas, received Chełm, his brother Alexander received Volodymyr-Volynskyi, and Yuri, son of Narimantas, continued to rule Belz.
Question: Which brother of Liubartas married a relative of Simeon of Moscow?
answer:
span


question:
Passage: 1st Squadron, 10th Cavalry  with the 4th Infantry Division participated in Exercise Reforger in 1977, 1978, 1981, 1985, 1987, and 1991. Exercise Reforger  was an annual exercise conducted, during the Cold War, by NATO. The exercise was intended to ensure that NATO had the ability to quickly deploy forces to West Germany in the event of a conflict with the Warsaw Pact. 2nd Squadron, 10th Cavalry  with the 7th Infantry Division participated in Exercise Reforger in 1984, 1986 and 1993. 3rd Battalion, 10th Cavalry  was activated in the 1st Cavalry Division at Fort Hood, Texas, in 1977.
Question: What was the first year that Exercise Reforger took place?
answer:
date


question:
Passage: In 2009, 78.5% of Dallas (city) commuters drive to work alone. The 2009 modal share for Dallas (city) commuters are 10.7% for carpooling, 3.9% for transit, 1.9% for walking, and .1% for cycling. In 2015, the American Community Survey estimated modal shares for Dallas (city) commuters of 75.4% for driving alone, 12.8% for carpooling, 3.5% for riding transit, 1.9% for walking, and .2% for cycling. The city of Dallas has a higher than average percentage of households without a car. In 2015, 10.2 percent of Dallas households lacked a car, and decreased to 9.1 percent in 2016. The national average was 8.7 percent in 2016. Dallas averaged 1.59 cars per household in 2016, compared to a national average of 1.8.
Question: Which year showed more of Dallas' population driving to work alone, 2009 or 2015?
answer:

date