Question: What are the German initials of the party that included Käthe Leichter in its rolls?

Context paragraphs:
Social Democratic Party of Austria: The Social Democratic Party of Austria (German: "Sozialdemokratische Partei Österreichs" , SPÖ) is a social-democratic political party in Austria.

WZB Berlin Social Science Center: The WZB Berlin Social Science Center (German: "Wissenschaftszentrum Berlin für Sozialforschung" , WZB), also known by its German initials WZB, is an internationally renowned research institute for the social sciences, the largest such institution in Europe not affiliated with a university.

Olaf Saile: Olaf Saile (27 August 1901 - 29 June 1952) was a German writer born in Weitingen, Württemberg.  Saile's principal claim to fame is the historical novel "Kepler, Roman einer Zeitwende" first published in German in Stuttgart in 1938 and many times reprinted.  It is an imagined biography of the life and times of the astronomer and mathematician Johannes Kepler.  The novel was translated into English by James A Galston and published in New York City in 1940 by Oskar Piest, under the title "Troubadour of the Stars".  The novel has occasionally been interpreted as a coded protest  against the Nazi régime which Saile had experienced at first hand.  Following the banning of the Social Democratic Party by the Nazis, in June 1933 as editor of the newspaper "Rathenower Zeitung", during the subsequent wave of arrests Olaf Saile was briefly detained in the Oranienburg Concentration Camp, during which time he was maltreated.  His release was apparently secured after a friend and fellow-journalist Käthe Lambert used her journalistic credentials to enter the camp and then to write a report detailing conditions there.  They subsequently married.  Saile died at the age of 50 and was buried in the Church of St. Bernhardt in Esslingen am Neckar.  Käthe Saile is buried alongside her husband.

Werner Braune: Karl Rudolf Werner Braune (11 April 1909, Mehrstedt, Schwarzburg-Rudolstadt − 7 June 1951, Landsberg Prison, Landsberg am Lech, Bavaria) was a German member of the Nazi police and military organization known as the Schutzstaffel, or, more commonly, by its German initials, SS.  He held the rank of Obersturmbannführer.  During the course of the Nazi invasion of the Soviet Union, which began on 22 June 1941, Braune was the commander of Special Detachment (German: "Sonderkommando" or "Einsatzkommando") 11b, which was in turn part of a Special Purpose Unit D.  This unit, and three others similarly organized, have since come to be known by their German name of Einsatzgruppen.  As commander of Special Detachment 11b, Braune organized and conducted mass murders of Jews in German-occupied areas of southern Ukraine and in the Crimea.  For his role in these crimes, Braune was tried before the Nuremberg Military Tribunal in 1948 in the Einsatzgruppen trial.  He was sentenced to death, and in 1951 was executed by hanging.

Käthe Dahlem: Käthe Dahlem (born Käthe Weber: 20 March 1899 - 25 December 1974) was a German political activist (USPD, KPD) who, after being forced into exile, became an anti-fascist Resistance activist, participating in the Spanish Civil War and, subsequently, again based in France.  After 1945 she became a public official in the Soviet occupation zone (relaunched in October 1949 as the German Democratic Republic (East Germany)).  She was retired on health grounds in July 1949 and was subsequently caught up in her husband's difficulties with the ruling party, the party first secretary, Walter Ulbricht and other leading party comrades who had spent the war years in Moscow.  By the 1960s, however, the authorities were happy to honour her pre-war and wartime contribution.

Golden Party Badge: The Golden Party Badge (German: "Goldenes Parteiabzeichen" , officially the "Goldenes Ehrenzeichen der NSDAP"; Golden Medal of the National Socialist German Workers' Party) was a special badge of the Nazi Party.  The first 100,000 members who had joined and had uninterrupted service in the Party were eligible for the badge (these were denoted by the party members' number stamped on the reverse).  Other Golden Party Badges (with the initials 'A.H.' stamped on the reverse) were awarded at the discretion of Adolf Hitler to certain members of the party who merited special treatment.  An identical badge was awarded each year on 30 January to persons who had shown outstanding service to the Nazi Party or State.  Only 20,487 men and 1,795 women were actually approved for and awarded the badge (outside of the ones Hitler awarded at his discretion).

Aragonese Party: The Aragonese Party (Spanish: "Partido Aragonés" , PAR) is a political party which advocates the interests of Aragon within Spain.  The party was founded in 1978 under the name Aragonese Regionalist Party, but changed its name in 1990, keeping the initials "PAR".  The founders of PAR included Emilio Eiroa, who later served as the President of the Government of Aragon from 1991 to 1993.

Johann Michael Seligmann: Johann Michael Seligmann (1720–1762) was a German artist and engraver best known for his ornithological artwork in "Sammlung verschiedener ausländischer und seltener Vögel" (Collection of various foreign and rare birds) of 1749, which included plates based on the works of Mark Catesby and George Edwards.  Seligmann received his initial training in engraving and art at the "Nürnberger Malerakademie" and some of his earlier works included the depictions of various rocks and minerals.  His other works included the "Opera Botanica" 1754 written Konrad Gesner.  Many of the copper plates that he made bear the initials JMS.

T. A. Robertson: Thomas Argyll Robertson {'1': ", '2': ", '3': ", '4': "} (27 October 1909 – 10 May 1994), known as "Tommy" or by his initials as "TAR", was a Scottish MI5 intelligence officer responsible during the Second World War for the "Double-Cross" ("XX") disinformation campaign against the German intelligence services.  Every German agent in Britain, with the exception of one who committed suicide without having been detected by the authorities, was actually working for British intelligence .  Included in this was Operation Mincemeat.  The disinformation campaign was successful in persuading the Germans that the invasions of Sicily (1943) and Normandy (1944) were going to occur elsewhere.

Käthe Leichter: Marianne Katharina "Käthe" Leichter (Vienna, 20 August 1895 – February 1942) was an Austrian economist, women's rights activist, journalist and politician.  She was a member of the Social Democratic Party of Austria and the Viennese Labour Chamber.  She was detained in Ravensbrück concentration camp during the Nazi regime and executed in 1942.

Supporting paragraphs: Käthe Leichter Social Democratic Party of Austria
Answer: SPÖ