Question: What are the nationalities of Leonid Khachiyan and Sofia Kovalevskaya?
Context: Tricia Striano was born in Weymouth Massachusetts.  She obtained her BA in psychology from The College of the Holy Cross.  She obtained her Ph.D. in Psychology from Emory University in 2000, after which she became Head of the Independent Research Group on Cultural Ontogeny at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany.  In 2004, Tricia Striano received the Sofia Kovalevskaya Award  of the Alexander von Humboldt Foundation.  She used the award to build the Neurocognition and Development Group at the Max Planck Institute for Human Cognitive and Brain Sciences and Center for Advanced Studies at the University of Leipzig.  In 2008, Dr. Striano obtained her habilitation from the University of Osnabruck in Germany.  Dr. Striano is currently a Professor in the Department of Psychology at Hunter College, City University of New York. Kovalevskaya is a prominent lunar impact crater that is located on the far side of the Moon.  It lies to the southwest of the larger walled plain Landau.  To the south of Kovalevskaya are the craters Poynting and Fersman. Nepal Federation of Indigenous Nationalities (NEFIN), is a national level umbrella organisation of indigenous peoples/nationalities in Nepal founded in 1990 as the Nepal Federation of Nationalities (NEFEN).  It consists of 54 indigenous member organizations.  In 2003, the organization was renamed as the Nepal Federation of Indigenous Nationalities.  Raj Kumar Lekhi is the elected Chairman of the organisation. Leonid Genrikhovich Khachiyan (Armenian: Լեոնիդ Գենրիխովիչ Խաչիյան ; Russian: Леонид Генрихович Хачиян ; May 3, 1952 – April 29, 2005) was a Soviet mathematician of Armenian descent who taught Computer Science at Rutgers University.  He was most famous for his ellipsoid algorithm (1979) for linear programming, which was the first such algorithm known to have a polynomial running time.  Even though this algorithm was shown to be impractical due to the high degree of the polynomial in its running time, it has inspired other randomized algorithms for convex programming and is considered a significant theoretical breakthrough. Anne Jaclard, born Anna Vasilyevna Korvin-Krukovskaya (1843–1887), was a Russian socialist and feminist revolutionary.  She participated in the Paris Commune and the First International and was a friend of Karl Marx.  She was once engaged to Fyodor Dostoyevsky but married the Blanquist Victor Jaclard.  Her sister was the mathematician and socialist Sofia Kovalevskaya (1850–1891). Lycée Français de Sofia Victor Hugo (LVH; "The French High School Victor Hugo", Bulgarian: Френско Училище и Детска градина „Виктор Юго” ) is a French international school in the Maxi Complex (Комплекс Макси) in Vitosha, Sofia, Bulgaria.  It is the largest foreign school in Bulgaria, hosting over 700 students from many nationalities.  It follows the French National Curriculum of study and has students from nursery school ("maternelle") up to twelfth grade ("terminale").  The student to teacher ratio is approximately 7:1. Olga Holtz (Russian: Ольга Гольц ; born August 19, 1973) is a Russian mathematician specializing in numerical analysis.  She received the Sofia Kovalevskaya Award in 2006 and the European Mathematical Society Prize (2008).  Since 2008, she is a member of the Young Academy (Junge Akademie"") of Germany. Bobone is an old, heavily eroded crater formation that lies on the far side of the Moon.  Little remains of the original crater formation, leaving only a bowl-shaped depression in the surface that is pock-marked by tiny craterlets.  It is attached to the southwest rim of the large satellite crater Kovalevskaya Q, which has its northeast rim overlaid by Kovalevskaya itself.  To the west-southwest is Bronk. The Alexander von Humboldt Foundation of Germany bestows the Sofia Kovalevskaya Award every two years.  Sofia Kovalevskaya (1850–1891) was the first major Russian female mathematician, who made important contributions to mathematical analysis, differential equations and mechanics, and the first woman appointed to a full professorship in Northern Europe.  This prestigious award named in her honor is given to promising young academics to pursue their line of research in the sciences or arts and humanities.  The foundation encourages applications from all areas of the academy so long as the investigator received a Ph.D. in the last six years and may be categorized as "top flight" by their publications and experience as commensurate with age. Sofia Vasilyevna Kovalevskaya (Russian: Со́фья Васи́льевна Ковале́вская ), born Sofia Vasilyevna Korvin-Krukovskaya (1850–1891), was a Russian mathematician who made noteworthy contributions to analysis, partial differential equations and mechanics.  She was the first major Russian female mathematician and a pioneer for women in mathematics around the world.  She was the first woman appointed to a full professorship in Northern Europe and was also one of the first women to work for a scientific journal as an editor.  Her sister was the socialist Anne Jaclard.
Answer: Russian