question: Where did Eigil Helland-Hansen's father study?
context: [["Grete Nash", ["Grete Nash( n\u00e9e Helland- Hansen; 14 February 1939 \u2013 20 March 1999) was a Norwegian ceramist.", "She was born in Oslo to Eigil Helland- Hansen and Sophie Marie Eeg, and was a granddaughter of oceanographer Bj\u00f8rn Helland- Hansen.", "She introduced the Japanese raku ware pottery tradition in Norway.", "Her wall plate\" Bysants\" from 1991 was acquired by the Storting, and she is represented in the National Museum of Art, Architecture and Design, the West Norway Museum of Decorative Art and S\u00f8rlandets Art Museum.", "She was decorated Knight, First Class of the Order of St. Olav in 1998."]], ["Joseph J. Sullivan (vaudeville)", ["Joseph J. Sullivan was a blackface comedian and acrobat in New York.", "He composed the song\" Where Did You Get That Hat?\" and first performed it in 1888.", "It was a great success and he performed it many times thereafter."]], ["Grete Nash", ["Grete Nash( n\u00e9e Helland- Hansen; 14 February 1939 \u2013 20 March 1999) was a Norwegian ceramist.", "She was born in Oslo to Eigil Helland- Hansen and Sophie Marie Eeg, and was a granddaughter of oceanographer Bj\u00f8rn Helland- Hansen.", "She introduced the Japanese raku ware pottery tradition in Norway.", "Her wall plate\" Bysants\" from 1991 was acquired by the Storting, and she is represented in the National Museum of Art, Architecture and Design, the West Norway Museum of Decorative Art and S\u00f8rlandets Art Museum.", "She was decorated Knight, First Class of the Order of St. Olav in 1998."]], ["Donnie Elbert", ["Donnie Elbert( May 25, 1936 \u2013 January 26, 1989) was an American soul singer and songwriter, who had a prolific career from the mid-1950s to the late 1970s.", "His US hits included\" Where Did Our Love Go?\"( 1972), and his reputation as a Northern soul artist in the UK was secured by\" A Little Piece of Leather\", a performance highlighting his powerful falsetto voice."]], ["Andrew Allen (singer)", ["Andrew Allen( born 6 May 1981) is a Canadian- born singer- songwriter from Vernon, British Columbia.", "He is signed to Sony/ ATV and has released 5 top 10 singles, and written and recorded many others, including\" Where Did We Go?\" with Carly Rae Jepsen.", "He also records covers and posts them on YouTube."]], ["Bj\u00f8rn Helland-Hansen", ["Bj\u00f8rn Helland-Hansen (16 October 1877 \u2013 7 September 1957) was a Norwegian pioneer in the field of modern oceanography.", "He studied the variation patterns of the weather in the northern Atlantic Ocean and of the atmosphere.", "He studied both medicine and physics at the University of Christiania (now University of Oslo).", "He developed the \"Helland-Hansen Photometer\" in 1910, which was carried on board \"Michael Sars\".", "It was operated for the first time close to the Azores at a depth between 500 and m.", "In 1915 he became Professor of oceanography at the Bergen Museum, and in 1917 director of the Geophysical Institute, University of Bergen.", "In 1933 he was awarded the Alexander Agassiz Medal.", "From 1946 to 1948, Helland-Hansen was President of the International Union of Geodesy and Geophysics (IUGG).", "He was a member of the Prussian Academy of Sciences and a member of the Member of the Academy of Sciences of the German Democratic Republic (DDR).", "Helland-Hansen trained Alexander Kuchin, the Russian oceanographer who went to Antarctica with Roald Amundsen.", "An island in the Russian Arctic, east of the Geiberg Islands, has been named Gellanda-Gansena after Helland-Hansen."]], ["Benny Rubinstein", ["Benny Rubinstein is a former Israeli footballer who played in Maccabi Netanya and Hapoel Netanya, who now works in Real estate development.", "http://www.haaretz.com/print-edition/real-estate/where-did-the-millions-go-1.302730", "Benny's son, Aviram also played football for Maccabi Netanya."]], ["Eigil Helland-Hansen", ["Eigil Helland-Hansen (5 November 1910 \u2013 26 April 1997) was a Norwegian travel agent.", "He was born in \u00c5rstad, Bergen to oceanographer Bj\u00f8rn Helland-Hansen and Anna Marie Krag, and was the father of ceramist Grete Nash.", "Helland-Hansen was assigned with the organization Norway Travel Association  from 1934, and from 1940 he was responsible for the periodical \"Rutebok for Norge\", which he edited for about forty years.", "He edited the magazine \"Reiseliv i Norge\" from 1946 to 1959."]], ["Nancy Baron", ["Nancy Baron is an American rock singer who was active in New York City in the early 1960s, known for the singles\" Where Did My Jimmy Go?\" and\" I've Got A Feeling\"."]], ["Robert Paul Smith", ["Robert Paul Smith( April 16, 1915 \u2013 January 30, 1977) was an American author, most famous for his classic evocation of childhood,\" Where Did You Go? Out. What Did You Do? Nothing\"."]]]
supporting_facts: [["Eigil Helland-Hansen", 1], ["Bj\u00f8rn Helland-Hansen", 2]]
evidences: [["Eigil Helland-Hansen", "father", "Bj\u00f8rn Helland-Hansen"], ["Bj\u00f8rn Helland-Hansen", "educated at", "University of Oslo"]]
answer: University of Oslo