Question: Yakau Zenko's coach is what ethnicity?
Context: Ladislau Ludovic Bonyhádi (Hungarian: "Bonyhádi László" ; born 25 March 1923 - deceased 13 June 1997 in Miami, Florida, United States) was a former Romanian football player of Hungarian ethnicity.  He was one of the legends of UTA Arad, being the top-goalscorer of Liga I twice, in 1947 and 1948.  In the 1947-48 season, he scored 49 goals, which is still a record for Romanian first league, despite that Dudu Georgescu scored 47 goals in the 1976 -1977 season whom was regarded as european record, until Messi scored 50 goals in the 2011-2012 season.  He earned also three caps for the Romania national side.  After his last season at ITA Arad, he went to Hungary, and played for a few teams in a lower league.  In 1958, he became coach at the class teams from the neighboring country. Esad Karišik () is a Serbian football manager and former player.  As player he has played in FK Novi Pazar, in the Yugoslav Second League, between 1984 and 1986 (35 league presences, 1 goal) and 1988-89 (6 league presences).  He is currently the manager of Montenegrin Second League side FK Ibar.  He has been the club manager since 5 November 2008 after the departure of previous coach, Gerti Haxhiu.  He is of Bosniak ethnicity. Yakau Zenko (born 21 July 2000) is a Belarusian figure skater.  In the 2015–16 season, he became the Belarusian national senior bronze medalist and junior champion.  He was selected to compete at the 2016 World Junior Championships in Debrecen.  In Hungary, Zenko qualified for the final segment by placing 22nd in the short program.  His 15th place in the free skate lifted him to 17th overall.  He trains in Moscow, Russia.  Formerly a student of Julia Soldatova at Moskvich, he is now coached by Eteri Tutberidze and Sergei Dudakov at Sambo 70. Semen Yosypovych Altman (, born 21 April 1946 in Chuhuiv) is a Ukrainian football coach and former goalkeeper of Jewish ethnicity. Fortunato Gan Co Jr. (born October 15, 1951), better known as "Atoy" Co, is a Filipino actor and current head coach of the Mapua Cardinals in the NCAA.  He is also a former politician and a retired professional basketball player who played 11 seasons in the PBA, mostly with Crispa Redmanizers.  Nicknamed "The Fortune Cookie" (a pun on his name and ethnicity) during his playing days, he was notable for his trademark turaround fadeaway jump shot. Hilario Chi Canul (Born 16 October 1981) is a Mexican linguist of Maya ethnicity who worked as a translator and Yucatec Maya language coach in the production of the 2006 movie "Apocalypto" by Mel Gibson.  In 2007 he won the first prize in the Mexican government's competition of indigenous language rhetoric.  He is Professor of Maya at the University of Quintana Roo (UQRoo).  He has worked as Maya language narrator in a number of commercial, art, and educational films.  He is also involved in the movement to revive Mexico's indigenous heritage.  He has given talks about his experience as a Maya translator working in the film industry at several American Universities.  Chi Canul also served as producer and lead actor in the first ever Maya-language telenovia Baktun in 2013. Petros Nazarbegian (Armenian: Պետրոս Նազարբեգեան ; Persian: پطروس نظربگیان‎ ‎ May 6, 1927 – November 13, 2015) was an Iranian amateur boxer of Armenian ethnicity who competed in the lightweight division at the 1952 Summer Olympics as a member of Iran senior national Boxing team.  He lost to Erkki Pakkanen, the eventual bronze medal winner, in the second round on points.  Nazarbegian was also the head coach of Iranian national boxing team, from 1954 up to 1963, an international referee, and vice president of the International Boxing Association. Vladimir Gutsaev (Georgian: ვლადიმერ გუცაევი , Russian: Владимир Гаврилович Гуцаев , "Vladimir Gavrilovich Gutsayev"; born 21 December 1952) is a retired Soviet and Georgian footballer and coach of Ossetian ethnicity.  He was a member of the Parliament of Georgia from the ruling United National Movement party from 2004 to 2008. Eteri Georgievna Tutberidze (Russian: Этери Георгиевна Тутберидзе ; born 24 February 1974) is a Russian figure skating coach.  She coaches ladies' and men's singles. Abdulah Gegić (born 19 March 1924 in Novi Pazar, Kingdom of Serbs, Croats and Slovenes - died June 21, 2008 in Novi Sad, Serbia) was a Yugoslav football coach of Bosniak ethnicity who also had Turkish citizenship.  While in Turkey he went by the name Abdullah Gegiç.
Answer: Russian