Please answer the following question: Information:  - Auschwitz concentration camp was a network of German Nazi concentration camps and extermination camps built and operated by the Third Reich in Polish areas annexed by Nazi Germany during World War II. It consisted of Auschwitz I (the original camp), Auschwitz IIBirkenau (a combination concentration/extermination camp), Auschwitz IIIMonowitz (a labor camp to staff an IG Farben factory), and 45 satellite camps.  - Adolf Hitler (20 April 1889  30 April 1945) was a German politician who was the leader of the Nazi Party ("Nationalsozialistische Deutsche Arbeiterpartei"; NSDAP), Chancellor of Germany from 1933 to 1945, and Führer ("Leader") of Nazi Germany from 1934 to 1945. As dictator of the German Reich, he initiated World War II in Europe with the invasion of Poland in September 1939 and was central to the Holocaust.  - Nazi Germany is the common English name for the period in German history from 1933 to 1945, when Germany was governed by a dictatorship under the control of Adolf Hitler and the Nazi Party (NSDAP). Under Hitler's rule, Germany was transformed into a fascist state in which the Nazi Party took totalitarian control over nearly all aspects of life. The official name of the state was "Deutsches Reich" from 1933 to 1943 and "Großdeutsches Reich" ("Greater German Reich") from 1943 to 1945. The period is also known under the names the Third Reich and the National Socialist Period (abbreviated as "NS-Zeit"). The Nazi regime came to an end after the Allied Powers defeated Germany in May 1945, ending World War II in Europe.  - Germany, officially the Federal Republic of Germany, is a federal parliamentary republic in central-western Europe. It includes 16 constituent states, covers an area of , and has a largely temperate seasonal climate. With about 82 million inhabitants, Germany is the most populous member state of the European Union. After the United States, it is the second most popular immigration destination in the world. Germany's capital and largest metropolis is Berlin. Other major cities include Hamburg, Munich, Cologne, Frankfurt, Stuttgart and Düsseldorf.  - The German extermination camps or death camps were designed and built by Nazi Germany during World War II (193945) to systematically kill millions of Jews, Slavs and others whom the Nazis considered "Untermenschen", primarily by gassing, but also in mass executions and through extreme work under starvation conditions.  - Franciszek Piper ( born 1941 ) is a Polish scholar , historian and author . Most of his work concerns the Holocaust , especially the history of the Auschwitz concentration camp . Dr. Piper is credited as one of the historians who helped establish a more accurate number of victims of Auschwitz - Birkenau death camps . According to his research , at least 1.1 million people perished at Auschwitz - Birkenau , of whom about 960,000 were Jewish . He is the author of several books and chair of the Historical Department at the Auschwitz - Birkenau State Museum .  - The Holocaust (from the Greek ': "hólos", "whole" and "kaustós", "burnt"), also referred to as the Shoah"' (Hebrew: , "HaShoah", "the catastrophe"), was a genocide in which Adolf Hitler's Nazi Germany and its collaborators killed about six million Jews. The victims included 1.5 million children and represented about two-thirds of the nine million Jews who had resided in Europe. Some definitions of the Holocaust include the additional five million non-Jewish victims of Nazi mass murders, bringing the total to about 11 million. Killings took place throughout Nazi Germany, German-occupied territories, and territories held by allies of Nazi Germany.  - Following the Invasion of Poland at the beginning of World War II, nearly a quarter of the entire territory of the Second Polish Republic was annexed by Nazi Germany and placed directly under the German civil administration. The rest of Nazi occupied Poland was renamed as the General Government district. The annexation was part of the "fourth" partition of Poland by Nazi Germany and the Soviet Union, outlined months before the invasion, in the Molotov-Ribbentrop Pact.  - Nazi Germany maintained concentration camps (KZ or KL) throughout the territories it controlled before and during the Second World War. The first Nazi camps were erected in Germany in March 1933 immediately after Hitler became Chancellor and his Nazi Party was given control over the police through Reich Interior Minister Wilhelm Frick and Prussian Acting Interior Minister Hermann Göring. Used to hold and torture political opponents and union organizers, the camps initially held around 45,000 prisoners.    After reading the paragraphs above, choose the best answer for the entity that related to 'franciszek piper' with the relationship of 'country of citizenship'.  Choices: - frankfurt  - germany  - hamburg  - poland  - politician
A:
poland