Question: In 1991, who was president of the nation first to reach the birthplace of the director of The Man from Morocco?

full_context: Document 1: The Man from Morocco: The Man from Morocco is a 1945 action adventure film directed by Mutz Greenbaum as Max Greene. The film was produced by Welwyn Studios in Great Britain.
Document 2: History of Russia (1991–present): Prior to the dissolution of the Soviet Union, Boris Yeltsin had been elected President of Russia in June 1991 in the first direct presidential election in Russian history. This ensured that Yeltsin would be the political leader of the Russian successor state following dissolution. This situation resulted in political turmoil as the Soviet and Russian leadership wrestled for control, which culminated in the 1991 August Putsch, where the Soviet military attempted to overthrow Gorbachev. Although the coup was ultimately averted, this situation contributed to rising instability in the Soviet Union. By October 1991, as the USSR was on the verge of collapse, Yeltsin announced that Russia would proceed with radical reforms, including market - oriented reform along the lines of Poland's ``big bang '', also known as`` shock therapy''.
Document 3: Race to Berlin: The western Allies' decision to leave eastern Germany and the city of Berlin to the Red Army -- honoring the agreement they made with the Soviet Union at Yalta -- eventually had serious repercussions as the Cold War emerged and expanded in the post-war era.
Document 4: Soviet Union: With the rise of strong nationalist and separatist movements inside the union republics, Gorbachev tried to avert a dissolution of the Soviet Union in the post-Cold War era. A March 1991 referendum, boycotted by some republics, resulted in a majority of participating citizens voting in favor of preserving the union as a renewed federation. Gorbachev's power was greatly diminished after Russian President Boris Yeltsin played a high - profile role in facing down an abortive August 1991 coup d'état attempted by Communist Party hardliners. On 25 December 1991, Gorbachev resigned and the remaining twelve constituent republics emerged as independent post-Soviet states. The Russian Federation -- formerly the Russian SFSR -- assumed the Soviet Union's rights and obligations and is recognized as the successor state of the Soviet Union. In summing up the international ramifications of these events, Vladislav Zubok stated: ``The collapse of the Soviet empire was an event of epochal geopolitical, military, ideological and economic significance. ''
Document 5: Our Man in Jamaica: Our Man in Jamaica/Operation Jamaica () is an 1965 Italian Spanish German international co-production Eurospy adventure film directed by an uncredited Mel Welles. It was credited to for reasons of European funding.
Document 6: Russia: In June 1991, Boris Yeltsin became the first directly elected President in Russian history when he was elected President of the Russian Soviet Federative Socialist Republic, which became the independent Russian Federation in December of that year. During and after the disintegration of the Soviet Union, wide-ranging reforms including privatization and market and trade liberalization were undertaken, including radical changes along the lines of "shock therapy" as recommended by the United States and the International Monetary Fund. All this resulted in a major economic crisis, characterized by a 50% decline in both GDP and industrial output between 1990 and 1995.
Document 7: Aftermath of World War II: The Aftermath of World War II was the beginning of an era defined by the decline of all great powers except for the Soviet Union and the United States, and the simultaneous rise of two superpowers: the Soviet Union (USSR) and the United States of America (USA). Allies during World War II, the USA and the USSR became competitors on the world stage and engaged in the Cold War, so called because it never resulted in overt, declared hot war between the two powers but was instead characterized by espionage, political subversion and proxy wars. Western Europe and Japan were rebuilt through the American Marshall Plan whereas Central and Eastern Europe fell under the Soviet sphere of influence and eventually an ``Iron Curtain ''. Europe was divided into a US - led Western Bloc and a Soviet - led Eastern Bloc. Internationally, alliances with the two blocs gradually shifted, with some nations trying to stay out of the Cold War through the Non-Aligned Movement. The Cold War also saw a nuclear arms race between the two superpowers; part of the reason that the Cold War never became a`` hot'' war was that the Soviet Union and the United States had nuclear deterrents against each other, leading to a mutually assured destruction standoff.
Document 8: Modern history: After World War II, Europe was informally split into Western and Soviet spheres of influence. Western Europe later aligned as the North Atlantic Treaty Organization (NATO) and Eastern Europe as the Warsaw Pact. There was a shift in power from Western Europe and the British Empire to the two new superpowers, the United States and the Soviet Union. These two rivals would later face off in the Cold War. In Asia, the defeat of Japan led to its democratization. China's civil war continued through and after the war, resulting eventually in the establishment of the People's Republic of China. The former colonies of the European powers began their road to independence.
Document 9: Guido Seeber: Guido Seeber (22 June 1879 in Chemnitz – 2 July 1940 in Berlin) was a German cinematographer and pioneer of early cinema.
Document 10: Spectre (2015 film): After wrapping up in England, production travelled to Morocco in June, with filming taking place in Oujda, Tangier and Erfoud, after preliminary work was completed by the production's second unit. An explosion filmed in Morocco holds a Guinness World Record for the "Largest film stunt explosion" in cinematic history, with the record credited to production designer Chris Corbould. Principal photography concluded on 5 July 2015. A wrap-up party for Spectre was held in commemoration before entering post-production. Filming took 128 days.
Document 11: Division of Korea: At the Tehran Conference and the Yalta Conference, the Soviet Union promised to join its allies in the Pacific War in two to three months after victory in Europe. On August 8, 1945, three months to the day after the end of hostilities in Europe, and two days after the atomic bomb was dropped on Hiroshima, the Soviet Union declared war on Japan. Soviet troops advanced rapidly, and the US government became anxious that they would occupy the whole of Korea. On August 10, 1945 two young officers -- Dean Rusk and Charles Bonesteel -- were assigned to define an American occupation zone. Working on extremely short notice and completely unprepared, they used a National Geographic map to decide on the 38th parallel. They chose it because it divided the country approximately in half but would place the capital Seoul under American control. No experts on Korea were consulted. The two men were unaware that forty years before, Japan and pre-revolutionary Russia had discussed sharing Korea along the same parallel. Rusk later said that had he known, he ``almost surely ''would have chosen a different line. The division placed sixteen million Koreans in the American zone and nine million in the Soviet zone. To the surprise of the Americans, the Soviet Union immediately accepted the division. The agreement was incorporated into General Order No. 1 (approved on 17 August 1945) for the surrender of Japan.
Document 12: Russian Soviet Federative Socialist Republic: On March 17, 1991, an all-Russian referendum created the post of President of the RSFSR. On June 12, Boris Yeltsin was elected President of Russia by popular vote. During an unsuccessful coup attempt on August 19–21, 1991 in Moscow, the capital of the Soviet Union and Russia, President of Russia Yeltsin strongly supported the President of the Soviet Union, Mikhail Gorbachev.
Document 13: Mutz Greenbaum: Mutz Greenbaum (3 February 1896 – 5 July 1968), sometimes credited as Max Greene or Max Greenbaum, was a Berlin, Germany-born film cinematographer.
Document 14: Max Ehrlich: Max Michaelis Ehrlich (7 December 1892, Berlin – 1 October 1944, Auschwitz concentration camp) was a German actor, screenwriter, and director on the German theater, comedy and cabaret scene of the 1930s.
Document 15: The Man Between: The Man Between (also known as Berlin Story) is a 1953 British thriller film directed by Carol Reed and starring James Mason, Claire Bloom, Hildegard Knef and Geoffrey Toone. The screenplay concerns a British woman on a visit to post-war Berlin, who is caught up in an espionage ring smuggling secrets into and out of the Eastern Bloc.
ground_truth: Mikhail Gorbachev
sub_queries: The Man from Morocco >> director Answer: Mutz Greenbaum
What is the place of birth of Mutz Greenbaum ? Answer: Berlin
what allied nation was the first to reach the german capitol of Berlin Answer: Soviet Union
Who was the President of Soviet Union in 1991? Answer: Mikhail Gorbachev