question: What nationality is Won Pyong-Oh's father?
context: [["Won Hong-gu", ["Won Hong-gu or Won Hong Koo (8 April 1888 - 3 October 1970) was an ornithologist, professor and parliament member in the Democratic People's Republic of Korea (North Korea).", "He was the first to establish the names of local birds in the Korean language and to publish a major ornithological monograph for the region.", "He was also a specialist on small mammals.", "He was separated from his children during the liberation of Korea from Japanese rule and its separation.", "Unknown to him, due to the political barriers between South and North Korea, his son", "Won Pyong", "-", "oh also became an eminent ornithologist in South Korea.", "The two came to know of each other's existence after the war through a migrating starling that had been ringed by the son and recovered by the father."]], ["Nayelly Hern\u00e1ndez", ["Nayelly Hern\u00e1ndez( born 23 February 1986) is a former Mexican female professional squash player.", "She has represented Mexico internationally in several international competitions including the Central American and Caribbean Games, Pan American Games, Women's World Team Squash Championships.", "Nayelly achieved her highest career ranking of 57 in October 2011 during the 2011 PSA World Tour.", "Her husband Chris Walker whose nationality is English is also a professional squash player.", "She joined the Trinity College in 2008 as the first Mexican female to join a US college for squash and graduated in 2010."]], ["Eleni Gabre-Madhin", ["Eleni Zaude Gabre- Madhin, an Ethiopian economist with Swiss nationality, is a former Chief Executive Officer of the Ethiopia Commodity Exchange( ECX).", "She has had many years of experience working on agricultural markets \u2013 particularly in Sub- Saharan Africa \u2013 and has held senior positions in the World Bank, the International Food Policy Research Institute( Washington), and United Nations( Geneva)."]], ["Oh, Father", ["Oh, Father may refer to:"]], ["Baglan Mailybayev", ["Baglan Mailybayev( in Kazakh \u0411\u0430\u0493\u043b\u0430\u043d \u0410\u0441\u0430\u0443\u0431\u0430\u0439\u04b1\u043b\u044b \u041c\u0430\u0439\u043b\u044b\u0431\u0430\u0435\u0432) was born on 20 May 1975 in Zhambyl region, Kazakhstan.", "His nationality is Kazakh.", "He is a politician of the Republic of Kazakhstan, Deputy Head of the Presidential Administration of the Republic of Kazakhstan, Doctor of Law( 2002)( under the supervision of Professor Zimanov S.Z.- scientific advisor and academician of National Academy of Sciences of the Republic of Kazakhstan) and Ph.D. in Political Science( 1998)."]], ["Lia Ices", ["Lia Ices is a singer- songwriter from Westport, Connecticut, currently living in Northern California.", "While she has been performing and recording for several years, Ices gained prominence when her song\" Love is Won\", from her second studio album\" Grown Unknown\", was played over the closing credits of the second- to- last episode of season one of HBO's Girls on June 10, 2012."]], ["Won Pyong-oh", ["Won Pyong-oh (born 1929) is a South Korean zoologist, known particularly for his work on Korean birds.", "He is the son of noted North Korean ornithologist Won Hong-gu (1888-1970).", "He has published approximately 120 papers on Korean ornithology.", "He has also published about 10 book-length studies of Korean zoology, although none have been translated into English."]], ["N. Murugumaran", ["N. Murugumaran is an Indian politician and incumbent member of the Tamil Nadu Legislative Assembly from the Kattumannarkoil constituency.", "He represents the Anna Dravida Munnetra Kazhagam party.", "He is won 2nd time in Kattumamnarkoil Assembly Constituency."]], ["Ali Rahuma", ["Ali Khalifa Rahuma( born May 16, 1982) is a Libyan football midfielder who's nationality is Libyan.", "He currently plays for Al- Ittihad, and is a member of the Libya national football team."]], ["Roberto Savio", ["Roberto Savio( born in Rome, Italy, but also holding Argentine nationality) is a journalist, communication expert, political commentator, activist for social and climate justice and advocate of global governance.", "He has spent most of his career with Inter Press Service( IPS), the news agency which he founded in 1964 along with Argentine journalist Pablo Piacentini.", "Savio studied Economics at the University of Parma, followed by post -graduate courses in Development Economics under Gunnar Myrdal, History of Art and International Law in Rome.", "He started his professional career as a research assistant in International Law at the University of Parma."]]]
supporting_facts: [["Won Pyong-oh", 1], ["Won Hong-gu", 0]]
evidences: [["Won Pyong-oh", "father", "Won Hong-gu"], ["Won Hong-gu", "country of citizenship", "Korea"]]
answer: Korea