In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

[EX Q]: Passage: In 1933, a child orphaned during the Ukrainian Holodomor runs away from his orphanage and is taken in by a Red Army unit and adopted by its kindly commander, who gives him the name Leo Demidov. In 1945, now a sergeant with the unit, Leo  becomes an icon across the Soviet Union when he is photographed planting the Soviet flag atop the Reichstag during the Battle of Berlin. He becomes a Hero of the Soviet Union.
In 1953, Leo, now married to Raisa and living in Moscow, is a captain in the Ministry of State Security, commanding a unit tasked with tracking down and arresting dissidents. They arrest a veterinarian, Anatoly Brodsky, and during the arrest, one of Leo's subordinates, the cowardly but ambitious Vasili Nikitin, shoots a farmer, Semyon Okun, and his wife in whose barn Brodsky has been hiding, orphaning their two young daughters. Angry, Leo strikes Vasili, who harbours growing resentment against Leo and the other officer in the unit, Alexei Andreyev; all three were in Berlin together in 1945. Vasili is in charge of Brodsky's interrogation and execution, and one of the names he gives to their superior, Major Kuzmin, is that of Raisa, a primary school teacher, several of whose colleagues have recently been arrested for dissident views. Kuzmin orders Leo to investigate his own wife.
Meanwhile, Alexei's young son, Jora, is found dead near a railway yard. Although the initial pathology report shows injuries consistent with torture, the surgically precise removal of organs, and drowning, the authorities declare that he was hit by a train, as Stalin has decreed that murder is a capitalist disease; there is no murder in a communist paradise. Alexei is forced to accept the official conclusions to save himself and the rest of his family. 
Question: What is the profession of the man that the person in Leo's unit interrogates?
[EX A]: veterinarian.

[EX Q]: Passage: In 1891 the Great Northern Railway crossed the Continental Divide at Marias Pass 5,213 feet (1,589 m), which is along the southern boundary of the park. In an effort to stimulate use of the railroad, the Great Northern soon advertised the splendors of the region to the public. The company lobbied the United States Congress. In 1897 the park was designated as a forest preserve. Under the forest designation, mining was still allowed but was not commercially successful. Meanwhile, proponents of protecting the region kept up their efforts. In 1910, under the influence of the Boone and Crockett Club, spearheaded by Club members George Bird Grinnell, Henry L. Stimson, and the railroad, a bill was introduced into the U.S. Congress which redesignated the region from a forest reserve to a national park. This bill was signed into law by President William Howard Taft on May 11, 1910. In 1910 George Bird Grinnell wrote, "This Park, the country owes to the Boone and Crockett Club, whose members discovered the region, suggested it being set aside, caused the bill to be introduced into congress and awakened interest in it all over the country".
From May until August 1910, the forest reserve supervisor, Fremont Nathan Haines, managed the park's resources as the first acting superintendent. In August 1910, William Logan was appointed the park's first superintendent. While the designation of the forest reserve confirmed the traditional usage rights of the Blackfeet, the enabling legislation of the national park does not mention the guarantees to the Native Americans. It is the position of the United States government that with the special designation as a National Park the mountains ceded their multi-purpose public land status and the former rights ceased to exist as it was confirmed by the Court of Claims in 1935. Some Blackfeet held that their traditional usage rights still exist de jure. In the 1890s, armed standoffs were avoided narrowly several times.The Great Northern Railway, under the supervision of president Louis W. Hill, built a number of hotels and chalets throughout the park in the 1910s to promote tourism.  These buildings, constructed and operated by a Great Northern subsidiary called the Glacier Park Company, were modeled on Swiss architecture as part of Hill's plan to portray Glacier as "America's Switzerland". Hill was especially interested in sponsoring artists to come to the park, building tourist lodges that displayed their work.  His hotels in the park never made a profit but they attracted thousands of visitors who came via the Great Northern. Vacationers commonly took pack trips on horseback between the lodges or utilized the seasonal stagecoach routes to gain access to the Many Glacier area in the northeast. 
Question: What was the full name of the Great Northern Railway president?
[EX A]: Louis W. Hill.

[EX Q]: Passage: Lissitzky was born on November 23, 1890 in Pochinok, a small Jewish community 50 kilometres (31 mi) southeast of Smolensk, former Russian Empire. During his childhood, he lived and studied in the city of Vitebsk, now part of Belarus, and later spent 10 years in Smolensk living with his grandparents and attending the Smolensk Grammar School, spending summer vacations in Vitebsk. Always expressing an interest and talent in drawing, he started to receive instruction at 13 from Yehuda Pen, a local Jewish artist, and by the time he was 15 was teaching students himself. In 1909, he applied to an art academy in Saint Petersburg, but was rejected. While he passed the entrance exam and was qualified, the law under the Tsarist regime only allowed a limited number of Jewish students to attend Russian schools and universities.
Like many other Jews then living in the Russian Empire, Lissitzky went to study in Germany. He left in 1909 to study architectural engineering at a Technische Hochschule in Darmstadt, Germany. During the summer of 1912, Lissitzky, in his own words, "wandered through Europe", spending time in Paris and covering 1,200 kilometres (750 mi) on foot in Italy, teaching himself about fine art and sketching architecture and landscapes that interested him. His interest in ancient Jewish culture had originated during the contacts with a Paris-based group of Russian Jews led by sculptor Ossip Zadkine, a lifetime friend of Lissitzky since early childhood, who exposed Lissitzky to conflicts between different groups within the diaspora. Also in 1912 some of his pieces were included for the first time in an exhibit by the St. Petersburg Artists Union; a notable first step. He remained in Germany until the outbreak of World War I, when he was forced to return home through Switzerland and the Balkans, along with many of his countrymen, including other expatriate artists born in the former Russian Empire, such as Wassily Kandinsky and Marc Chagall.Upon his return to Moscow, Lissitzky attended the Polytechnic Institute of Riga, which had been evacuated to Moscow because of the war, and worked for the architectural firms of Boris Velikovsky and Roman Klein.  During this work, he took an active and passionate interest in Jewish culture which, after the downfall of the openly antisemitic Tsarist regime, was experiencing a renaissance. The new Provisional Government repealed a decree that prohibited the printing of Hebrew letters and that barred Jews from citizenship. Thus Lissitzky soon devoted himself to Jewish art, exhibiting works by local Jewish artists, traveling to Mahilyow to study the traditional architecture and ornaments of old synagogues, and illustrating many Yiddish children's books. These books were Lissitzky's first major foray in book design, a field that he would greatly greatly influence over the course of his career. 
Question: What was the name of the city where Lissitzky studied architectural engineering?
[EX A]:
Darmstadt.