question: Who died first, Orest Zerebko or Martial Singher?
context: [["H\u00e9l\u00e8ne Grenier", ["H\u00e9l\u00e8ne Grenier was a Canadian librarian born in 1900 who died in 1992."]], ["Michel Singher", ["Michel Singher is a French- born conductor who is currently Artistic Director and conductor of Espressivo\u2014a small, intense orchestra\u2014in Santa Cruz, California.", "He is also a frequent conductor at West Bay Opera.", "He is an honors graduate of Harvard College in history and literature, and of the Indiana University School of Music.", "He began his career as an accompanist to his father, the French baritone Martial Singher.", "In the footsteps of his grandfather, German conductor Fritz Busch, he spent a decade conducting in German opera houses, including the Hamburgische Staatsoper.", "He has since conducted some 70 operas in many hundreds of performances throughout the United States.", "He has taught at the Freiburg Hochschule f\u00fcr Musik; the University of Washington; the Oberlin Conservatory of Music, where he was co-organizer of a comprehensive Alban Berg Festival in 1985; at New York University; and at San Jose State University."]], ["David Scotus", ["David Scotus was a Gaelic chronicler who died in 1139."]], ["Frances Lasker Brody", ["Frances Lasker Brody( 1916\u20132009) was an American arts advocate, collector, and philanthropist who influenced the development of Los Angeles' cultural life as a founding benefactor of the Los Angeles County Museum of Art and later as a guiding patron of the Huntington Library, Art Collections and Gardens.", "Mrs. Brody, who died on November 12, 2009 at 93, was the wife of Sidney F. Brody, a real estate developer who died in 1983, and the stepdaughter of Mary Lasker, a philanthropist and champion of medical research who died in 1994.", "The Brodys lived in a modernist house in the Holmby Hills neighborhood of Los Angeles that was designed by the architect A. Quincy Jones and the decorator William Haines to show off the couple \u2019s collection."]], ["Muiredach Ua h\u00c9nlainge", ["Muiredach Ua h\u00c9nlainge was a Bishop of Clonfert who died in 1117."]], ["Martial Singher", ["Martial Singher (August 14, 1904 - March 9, 1990) was a French baritone opera singer born in Oloron-Sainte-Marie, Pyr\u00e9n\u00e9es-Atlantiques.", "Initially singing only as a hobby, he was encouraged by then French education minister \u00c9douard Herriot to pursue singing professionally.", "He would go on to perform in the Op\u00e9ra National de Paris, New York City Opera and Metropolitan Opera.", "He recorded an acclaimed M\u00e9phistophel\u00e8s under Charles Munch in the RCA recording of Berlioz's \"La Damnation de Faust\" (February 1954) with the Boston Symphony Orchestra and celebrated lyric soprano Suzanne Danco as Marguerite.", "Later in his life, he became an accomplished music teacher at Curtis Institute in Philadelphia and at the Conservatoire de musique du Qu\u00e9bec \u00e0 Montr\u00e9al, influencing the careers of such artists as James King, Donald Gramm, Jeannine Altmeyer, Benita Valente, John Reardon, Louis Quilico, Jean-Fran\u00e7ois Lapointe, Judith Blegen, Cynthia Hoffmann, and Thomas Moser.", "Martial Singher has also been the teacher of world-famous baritones such as Thomas Hampson and Rodney Gilfry.", "His son, Michel Singher, is an accomplished conductor."]], ["\u00c8ve Gagnier", ["\u00c8ve Gagnier( November 12, 1930 \u2013 September 19, 1984) was an actress and singer in Quebec, Canada.", "The daughter of Ren\u00e9 Gagnier, a musician, conductor and composer, she was born in Montreal and was educated at the Conservatoire de musique du Qu\u00e9bec \u00e0 Montr\u00e9al, studying voice with Martial Singher, piano with and harp with Marcel Grandjany.", "In 1957, Gagnier took on the role of Tite- Ange in the film, followed by the same role in the television series; this first brought her to the attention of the Quebec public.", "From 1954 to 1966, she performed as a singer on the program\" L' Heure du concert\".", "She went on to perform in various operettas and musical comedies on stage and on CBC radio and television.", "She also provided voices for various children's programs such as\" Passe- Partout\".", "Her sister Claire was also a well- known singer.", "She died in Montreal at the age of 53 at the H\u00f4tel- Dieu de Montr\u00e9al after suffering from kidney problems.", "Rue \u00c8ve-Gagnier in Montreal was named in her honour."]], ["Michael Mavroudis", ["Michael Mavroudis was a martyr from Granitsa, who died in 1544."]], ["Orest Zerebko", ["Orest Zerebko (September 15, 1887 \u2013 February 21, 1943) was a Galician-born journalist and political figure in Saskatchewan.", "He represented Redberry from 1938 to 1943 in the Legislative Assembly of Saskatchewan as a Liberal.", "He was born in Horodenka, Austria-Hungary, the son of Elias Zerebko, of Ukrainian descent, and came to Canada in 1900.", "In 1913, Zerebko received a Bachelor of Arts degree from the University of Manitoba, becoming the first person of Ukrainian descent to graduate from a Canadian university.", "He was a contributor and later editor-in-chief for the weekly Ukrainian newspaper \"Ukrainskyi Holos\".", "He died in office at home in Blaine Lake at the age of 55."]], ["Parid Dule", ["Parid Dule( born 1969) is an Albanian painter and karate instructor or martial arts trainer who lives and works in Tirana, originating from P\u00ebrmet Albania.", "Vivaldi's\" Four Seasons\" inspired his latest exhibition in the National Historical Museum( Albania) on April 2011.", "Parid is a member of an artist's family, including his uncle sculptor Hektor Dule.", "Dule is an ex-Champion karate Master.", "Parid is the winner of many international competitions in karate."]]]
supporting_facts: [["Orest Zerebko", 0], ["Martial Singher", 0]]
evidences: [["Orest Zerebko", "date of death", "February 21, 1943"], ["Martial Singher", "date of death", "March 9, 1990"]]
answer: Orest Zerebko