Question: What is the three letter abbreviation for the country, which maintains border troops, that claims Bernd Baumgart as a citizen?

Context paragraphs:
paragraph_text: Bernd Baumgart (born 3 July 1955) is a German rower who competed for East Germany in the 1976 Summer Olympics.
title: Bernd Baumgart
paragraph_text: Zacuscă () is a vegetable spread popular in Romania. Similar spreads are found in other countries throughout, or bordering, the Balkans.
title: Zacuscă
paragraph_text: Heinz-Josef Große was a 34-year-old East German (GDR) construction worker who was shot and killed on 29 March 1982 by GDR border guards on the Inner German border at Schifflersgrund, near Bad Sooden-Allendorf.
title: Heinz-Josef Große
paragraph_text: East German literature is the literature produced in East Germany from the time of the Soviet occupation in 1945 until the end of the communist government in 1990. The literature of this period was heavily influenced by the concepts of socialist realism and controlled by the communist government. As a result, the literature of the German Democratic Republic (East Germany) was for decades dismissed as nothing more than "Boy meet Tractor literature", but its study is now considered a legitimate field. Because of its language, the literature is more accessible to western scholars and is considered to be one of the most reliable, if not the most reliable, sources about East Germany.
title: Literature of East Germany
paragraph_text: The smoking age is the minimum legal age required to purchase or smoke tobacco products. In almost all countries citizens are eligible to buy tobacco products when they turn 18. Most countries have laws that restrict those below a minimum age from legally purchasing tobacco products.
title: Smoking age
paragraph_text: FGM was outlawed in the UK by the Prohibition of Female Circumcision Act 1985, which made it an offence to perform FGM on children or adults. The Female Genital Mutilation Act 2003 and the Prohibition of Female Genital Mutilation (Scotland) Act 2005 made it an offence to arrange FGM outside the country for British citizens or permanent residents, whether or not it is lawful in the country to which the girl is taken.
title: Female genital mutilation in the United Kingdom
paragraph_text: Visa requirements for New Zealand citizens are administrative entry restrictions by the authorities of other states placed on citizens of New Zealand. As of 1 January 2017, New Zealand citizens had visa - free or visa on arrival access to 172 countries and territories, ranking the New Zealand passport 5th in terms of travel freedom (tied with Irish and Japanese passports) according to the Henley visa restrictions index.
title: Visa requirements for New Zealand citizens
paragraph_text: Sister Cities International (SCI) is a nonprofit citizen diplomacy network that creates and strengthens partnerships between communities in the United States and those in other countries, particularly through the establishment of "sister cities". More than 2,000 cities, states and counties are partnered in over 140 countries around the world. The organization "strives to build global cooperation at the municipal level, promote cultural understanding and stimulate economic development".
title: Sister Cities International
paragraph_text: Togo (), officially the Togolese Republic (), is a country in West Africa bordered by Ghana to the west, Benin to the east and Burkina Faso to the north. The sovereign state extends south to the Gulf of Guinea, where its capital Lomé is located. Togo covers , making it one of the smallest countries in Africa, with a population of approximately /1e6 round 1 million.
title: Togo
paragraph_text: North Korea (Korean: ; MR: "Chosŏn" or literally ; MR: "Pukchosŏn"), officially the Democratic People's Republic of Korea (DPRK or DPR Korea; Korean: , "Chosŏn Minjujuŭi Inmin Konghwaguk"), is a country in East Asia constituting the northern part of the Korean Peninsula, with Pyongyang the capital and the largest city in the country. To the north and northwest, the country is bordered by China and by Russia along the Amnok (known as the Yalu in Chinese) and Tumen rivers and to the south it is bordered by South Korea, with the heavily fortified Korean Demilitarized Zone (DMZ) separating the two. Nevertheless, North Korea, like its southern counterpart, claims to be the legitimate government of the entire peninsula and adjacent islands.
title: North Korea
paragraph_text: In January 1790, Burke read Dr. Richard Price's sermon of 4 November 1789 entitled, A Discourse on the Love of our Country, to the Revolution Society. That society had been founded to commemorate the Glorious Revolution of 1688. In this sermon Price espoused the philosophy of universal "Rights of Men". Price argued that love of our country "does not imply any conviction of the superior value of it to other countries, or any particular preference of its laws and constitution of government". Instead, Price asserted that Englishmen should see themselves "more as citizens of the world than as members of any particular community".
title: Edmund Burke
paragraph_text: Cascade City or Cascade was a Canadian Pacific Railway construction era boom town in the Boundary Country of the West Kootenay region of British Columbia, Canada. Because of its location near the Canada–United States border, it was also called the "Gateway to the Boundary Country".
title: Cascade City
paragraph_text: Turkey is situated in  Anatolia (97%) and the Balkans (3%), bordering the Black Sea, between Bulgaria and Georgia, and bordering the Aegean Sea and the Mediterranean Sea, between Greece and Syria. The geographic coordinates of the country lie at: 39°00′N 35°00′E
title: Geography of Turkey
paragraph_text: French citizens can live and work in any country within the EU as a result of the right of free movement and residence granted in Article 21 of the EU Treaty.
title: French passport
paragraph_text: Sweden is a country in Northern Europe on the Scandinavian Peninsula. It borders Norway to the west; Finland to the northeast; and the Baltic Sea and Gulf of Bothnia to the south and east. At , Sweden is the 55th largest country in the world. It is the fifth largest in Europe and the largest in Northern Europe.
title: Geography of Sweden
paragraph_text: Canada (/ ˈkænədə / (listen); French: (kanadɑ)) is a country in the northern part of North America. Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean, covering 9.98 million square kilometres (3.85 million square miles), making it the world's second - largest country by total area and the fourth - largest country by land area. Canada's southern border with the United States is the world's longest bi-national land border. The majority of the country has a cold or severely cold winter climate, but southerly areas are warm in summer. Canada is sparsely populated, the majority of its land territory being dominated by forest and tundra and the Rocky Mountains. It is highly urbanized with 82 per cent of the 35.15 million people concentrated in large and medium - sized cities, many near the southern border. Its capital is Ottawa, and its five largest metropolitan areas are Toronto, Montreal, Vancouver, Calgary and Ottawa.
title: Canada
paragraph_text: Liechtenstein is bordered by Switzerland to the west and south and Austria to the east and north. It is Europe's fourth-smallest country, with an area of just over 160 square kilometres (62 square miles)  and a population of 37,877. Divided into 11 municipalities, its capital is Vaduz, and its largest municipality is Schaan. It is also the smallest country to border two countries.Economically, Liechtenstein has one of the highest gross domestic products per person in the world when adjusted for purchasing power parity. It was once known as a billionaire tax haven, but is no longer on any blacklists of uncooperative tax haven countries (see taxation section).
title: Liechtenstein
paragraph_text: Spain (Spanish: España [esˈpaɲa] (listen)), officially the Kingdom of Spain (Spanish: Reino de España), is a country mostly located in Europe. Its continental European territory is situated on the Iberian Peninsula. Its territory also includes two archipelagoes: the Canary Islands off the coast of Africa, and the Balearic Islands in the Mediterranean Sea. The African enclaves of Ceuta, Melilla, and Peñón de Vélez de la Gomera make Spain the only European country to have a physical border with an African country (Morocco). Several small islands in the Alboran Sea are also part of Spanish territory. The country's mainland is bordered to the south and east by the Mediterranean Sea except for a small land boundary with Gibraltar; to the north and northeast by France, Andorra, and the Bay of Biscay; and to the west and northwest by Portugal and the Atlantic Ocean.
title: Spain

Reasoning steps:
Of which country is Bernd Baumgart a citizen? >>>> East Germany
Literature of East Germany >> country >>>> German Democratic Republic
Border Troops of German Democratic Republic >> country >>>> GDR

Answer: spans: GDR