Problem: 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.
Answer this question based on the article: Which happened first, Czechoslovakia and Poland modifying their border along the Dunajec, or the treaty guaranteeing basic rights for Slovaks in Poland was signed?
A: treaty guaranteeing basic rights

Problem: Georgetown recorded a population of 118,363 in the 2012 Guyanese census, down 12 percent from the 134,497 people counted in the 2002 census. In 2002, about 70,962 (53%) listed themselves as Black people/Ethnic groups of Africa; 31,902 (24%) as Mixed Race; 26,542 (20%) as Indian people;  1,441 (1.1%) as Amerindian; 1075 (0.8%) as Portuguese people; 475 (0.35%) as Chinese people; 2,265 (1.7%) as "dont know/not stated"; 196 (0.15%) as white people not of Portuguese descent; 35 as "other".
Answer this question based on the article: What is the third most populous ethnicity in Georgetown?
A: Indian

Problem: On 2 October 1187 the Ayyubid sultan Saladin captured Jerusalem and large parts of the Crusader states. In an effort to reclaim the Outremer estates, the Third Crusade was launched by King Philip II of France, King Richard I of England, and Emperor Frederick I of the Holy Roman Empire in 1189. Frederick departed with a huge army, defeated a Seljuk contingent near Philomelion and captured Iconium, but then drowned in the Göksu River near Silifke in Cilicia. Upon his death, Frederick's German crusading host, totaling perhaps 12,000 to 15,000 men, mostly disbanded and a much smaller contingent led by Frederick's son Duke Frederick V of Swabia continued to the Holy Land, where they joined the Siege of Acre. The crusade ended in the 1192 Treaty of Ramla signed by Sultan Saladin and King Richard Coeur de Lion, establishing a three-years armistice and allowing the Muslims to retain control over Jerusalem, while the Crusaders maintained Acre, Jaffa, and other key coastal cities.
Answer this question based on the article: How many years after Saladin captured Jerusalem was the Third Crusade launched?
A:
2