Question: Jens Wahl, is a German former footballer, and won one cap for East Germany, the East Germany national football team was from 1952 to which year, the football team of East Germany?

full_context: Document 1: Erich Hamann: Erich Hamann (born 27 November 1944 in Pasewalk, Mecklenburg-Vorpommern) is a former footballer from East Germany, who played for the club FC Vorwärts Frankfurt/Oder. He earned 3 caps for the East Germany national football team, and played in the 1974 FIFA World Cup, including the historic match against West Germany, where he provided the pass to Jürgen Sparwasser, who scored the only goal in the 1-0 win.
Document 2: Germany Olympic football team: The Germany Olympic football team represents Germany in international football competitions in Olympic Games. It has been active since 1908, and first competed in 1912. Olympic football was originally an amateur sport, and as the pre-World War II German national team was also amateur, it was able to send a full national team to the games. After the war, Germany was divided, but until 1964 East and West competed under the name of "United Team of Germany", although without a combined squad. From 1968 West Germany began to compete on its own, but were still forced to send an amateur team, who were not able to match the success of their professional counterparts in the World Cup and European Championship. The rules on amateurism were relaxed in the 1980s, which allowed West Germany some success, notably a bronze medal finish in 1988. Since 1992 the tournament has been competed by under-23 teams, making Germany's Olympic qualification dependent on the results of the under-21 team. Only in 2016 the Germans returned to the Olympic stage, with a silver medal after losing on a penalty shoot-out to hosts Brazil. Reunified Germany is now the only World Cup champion without the Olympic gold.
Document 3: East Germany national football team: The East Germany national football team was from 1952 to 1990 the football team of East Germany, playing as one of three post-war German teams, along with Saarland and West Germany.
Document 4: Jürgen Klinsmann: Jürgen Klinsmann (] , born 30 July 1964) is a German football manager and former player who was most recently the head coach of the United States men's national team. As a player, Klinsmann played for several prominent clubs in Europe and was part of the West German team that won the 1990 FIFA World Cup and the unified German team that won the 1996 UEFA European Championship. One of Germany's premier strikers during the 1990s, he scored in all six major international tournaments he participated in, from Euro 1988 to 1998 World Cup. In 1995, he came in third in the FIFA World Player of the Year award; in 2004 he was named in the FIFA 100 list of the "125 Greatest Living Footballers".
Document 5: List of Dynamo Dresden players: As one of the leading clubs in East Germany, Dynamo Dresden provided 36 East German internationals, including the country's second most-capped player, Hans-Jürgen Dörner, and its joint second top scorer, Hans-Jürgen Kreische. Kreische and Siegmar Wätzlich were in East Germany's squad for their only World Cup appearance (1974), while twelve Dynamo players won Olympic medals, including six gold medallists in 1976. After German reunification a number of Dynamo players went on to represent the Germany national team, including Jens Jeremies, Ulf Kirsten, Olaf Marschall and Alexander Zickler. Dynamo have also seen internationals from other nations, including Australia (Joshua Kennedy and Mark Schwarzer), the Czech Republic (Ivo Ulich and Tomas Votava), Slovenia (Klemen Lavrič and Miran Pavlin) and Sweden (Johnny Ekström).
Document 6: East Germany national under-21 football team: The East Germany national football team was the national football team of the German Democratic Republic. Following the realignment of UEFA's youth competitions in 1976, East Germany's Under-21 team was formed. The team played until 1990, until East Germany ceased to be a separate country after the reunification of Germany.
Document 7: Bernd Schulz: Bernd Schulz (born February 12, 1960) is a German former footballer. Schulz began his career with Berliner FC Dynamo, and was part of the all-conquering team of the 1980s. He won nine consecutive East German titles, and two Cups between 1979 and 1989. He also won three caps for East Germany in 1984 and 1985, scoring one goal. He ended his career in 1993, having played for SG Bergmann-Borsig and Union Berlin.
Document 8: East Germany national football team results: The East Germany national football team represented the former state of East Germany from 1952 until the German reunification in 1990. The team was governed by the Deutscher Fußball-Verband, and was a part of the UEFA confederation.
Document 9: East Germany at the FIFA World Cup: East Germany appeared in the finals of the FIFA World Cup on one occasion in 1974. During the tournament they played West Germany for the first and only time at senior level, winning 1-0. East Germany was reunified with West Germany in 1990 and did not compete again after the 1990 World Cup.
Document 10: Jens Wahl: Jens Wahl (born July 24, 1966) is a German former footballer. Wahl began his career with FC Hansa Rostock in the DDR-Oberliga, and won one cap for East Germany. After reunification, Hansa won the final, transitional East German championship, and the cup, with Wahl scoring the winner in the final. He later played for Chemnitzer FC, FC St. Gallen and Dynamo Dresden.
Document 11: Germany national football team: The Germany national football team (German: "Die deutsche Fußballnationalmannschaft" or just "Die Mannschaft") is the men's football team that has represented Germany in international competition since 1908. It is governed by the German Football Association ("Deutscher Fußball-Bund"), founded in 1900. Ever since the DFB was reinaugurated in 1949 the team has represented the Federal Republic of Germany. Under Allied occupation and division, two other separate national teams were also recognised by FIFA: the Saarland team representing the Saarland (1950–1956) and the East German team representing the German Democratic Republic (1952–1990). Both have been absorbed along with their records by the current national team. The official name and code "Germany FR (FRG)" was shortened to "Germany (GER)" following the reunification in 1990.
Document 12: Jens Schmidt (footballer): Jens Schmidt (born 3 April 1963) is a German former football goalkeeper who played for Chemnitzer FC.
Document 13: Bodo Rudwaleit: Bodo Rudwaleit (born 3 August 1957 in Woltersdorf (bei Berlin)) is a former German former football goalkeeper who played in East Germany. He played during most of his career for the football club Berliner FC Dynamo where he was East German champion ten times in a row from 1979 to 1988. He was also the goalkeeper of the East Germany national squad for over a decade before the collapse of the country between 1989 and 1990. He played for East Germany at the 1980 Summer Olympics.
Document 14: Sports associations (East Germany): The term Sports Associations (German: "Sportvereinigung" , ] ) in East Germany (German Democratic Republic, GDR) meant a sports agency for certain economic branches of the whole society, which were members of the East German Sports Association (DTSB). Members of biggest social employers had their own branch sports clubs or the "Sportvereinigung". One of the biggest problems is that you can not find almanacs of these today. All of them were recycled or sold to private persons. So you can not start an article about each trade sports association, since 2012. The rest are data banks of history sections from the sport club sites with the certain name or in addition: pennants, medals, flags, and other related objects. Nevertheless, you can find still a lot of sports societies in the former GDR which use the old names. After 1954 they separated amateur sport from professional sport, and from 1961, most Trade Sports-Associations of sports societies in the GDR had been closed but existed under single clubs with the name BSG ("Betriebssportgemeinschaft") which meant Cooperative Sports Collective in English. In 1966, the football sections were separated and they used the name Fußballclub (FC). They had to conform to the rules of the East German Sports Association. The sections of the associations were called Sports Clubs (SCs) for only the professional athletes.
Document 15: Werner Lihsa: Werner Lihsa (born 3 June 1943) is a former East Germany international goalkeeper. He played for Berliner FC Dynamo and 1. FC Union Berlin as well as the East Germany national football team.
ground_truth: 1990