[PAR] [TLE] Josef Mengele [SEP] Josef Mengele (] ; 16 March 19117 February 1979) was a German "Schutzstaffel" (SS) officer and physician in Auschwitz concentration camp during World War II.  Mengele was a member of the team of doctors responsible for the selection of victims to be killed in the gas chambers and for performing deadly human experiments on prisoners.  Arrivals deemed able to work were admitted into the camp, and those deemed unfit for labor were immediately killed in the gas chambers.  Mengele left Auschwitz on 17 January 1945, shortly before the arrival of the liberating Red Army troops.  After the war, he fled to South America, where he evaded capture for the rest of his life. [PAR] [TLE] Jona Laks [SEP] Jona Laks (born 1930) is a Polish Jewish Holocaust survivor who was subject to human experimentation by Josef Mengele at the Auschwitz concentration camp.  After the war she founded and served as chairwoman of the Organization of the Mengele Twins.  In January 2015 she addressed the United Nations General Assembly at its International Day of Commemoration in Memory of the Victims of the Holocaust Memorial Ceremony.  She has been featured in several documentary films.
[PAR] [TLE] Josef Mengele [ SEP ] Josef Mengele ( ] ; 16 March 19117 February 1979 ) was a German " Schutzstaffel " ( SS ) officer and physician in Auschwitz concentration camp during World War II . Mengele was a member of the team of doctors responsible for the selection of victims to be killed in the gas chambers and for performing deadly human experiments on prisoners . Arrivals deemed able to work were admitted into the camp , and those deemed unfit for labor were immediately killed in the gas chambers . Mengele left Auschwitz on 17 January 1945 , shortly before the arrival of the liberating Red Army troops . After the war , he fled to South America , where he evaded capture for the rest of his life . [PAR] [TLE] Jona Laks [ SEP ] Jona Laks ( born 1930 ) is a Polish Jewish Holocaust survivor who was subject to human experimentation by Josef Mengele at the Auschwitz concentration camp . After the war she founded and served as chairwoman of the Organization of the Mengele Twins . In January 2015 she addressed the United Nations General Assembly at its International Day of Commemoration in Memory of the Victims of the Holocaust Memorial Ceremony . She has been featured in several documentary films .
What is the nationality of the physician who conducted experiments on Jona Laks ?
What is the nationality of the physician who conducted experiments on Jona Laks ?
German
German