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.

Example Input: Passage: In 1945 the border between Poland and Czechoslovakia was set at the 1920 line. Polish troops then occupied northern Orava and Spiš on 17 July 1945. There were armed clashes and fatalities in some villages over the following two years. Slovaks from the Polish part of Spiš settled mainly in the newly created industrial town of Svit near Poprad, Kežmarok, Poprad, and in depopulated German villages  near Kežmarok. Slovaks from the Polish part of Orava settled mainly in Czech Silesia, and in depopulated German villages in the Czech lands . On 10 March 1947 a treaty guaranteeing basic rights for Slovaks in Poland was signed between Czechoslovakia and Poland. As a result, 41 Slovak basic schools and 1 high school were opened in Poland. Most of these however were shut down in the early sixties because of lack of Slovakian teachers. On June 13, 1958, in Warsaw, the two countries signed a treaty confirming the border at the line of January 1, 1938 , and since then there have been no conflicts regarding this matter. In March 1975 Czechoslovakia and Poland modified their border along the Dunajec to permit Poland to construct a dam in the Czorsztyn region, southeast of Kraków.
Question: When the border between Poland and Czechoslovakia was set at the 1938 line?
Example Output: date

Example Input: Passage: While Ava had its hands full with the Manipuri raids in Upper Burma, a rebellion broke out at Pegu in November 1740. Ethnic Mon officials selected Smim Htaw Buddhaketi, a cousin of the king at Ava, as their king. The court at Pegu consolidated its hold in Lower Burma. Starting in 1742, Pegu, with renegade Dutch and Portuguese musketeers, began its annual raids of the upcountry. Because of the Manipuri threat, Ava could only send small armies to the south in 1743 and 1744, neither of which made any mark. The war "carried on languidly", with neither side achieving any lasting advantage until 1747. In December 1747, Binnya Dala came to power in Pegu, and the new king was determined to finish the war. He was not satisfied to gain independence for Lower Burma itself but determined to make Upper Burma its tributary. He stopped the annual raids and began planning for a decisive invasion. He sought and received French East India Company's support in firearms. Alarmed, Ava too sought support from China but no help materialised. In November 1751, Pegu launched a full-scale invasion by land and by river with a total strength of 30,000. Ava had prepared an extensive defensive line around Ava—a riverside fort at Sinbyukyun on the Irrawaddy, and a series of forts at Sintgaing, Tada-U and Pinya en route to Ava. By mid-January, the invasion forces had overcome Ava's defences, and laid siege to the city. On 21 March 1752, the invaders broke through the city's outer walls. Two days later, they breached the inner walls and took the city. The 266-year-old Toungoo Dynasty had fallen.
Question: When did the invaders breach the inner walls and take the city?
Example Output: date

Example Input: Passage: In the city, the population was distributed as 28.3% under the age of 18, 11.3% from 18 to 24, 32.7% from 25 to 44, 18.2% from 45 to 64, and 9.6% who were 65 years of age or older. The median age was 31 years. For every 100 females, there were 97.3 males. For every 100 females age 18 and over, there were 94.5 males.
Question: Which gender group is smaller: females or males?
Example Output:
span