question: Who is Blácaire Mac Gofraid's father?
context: [["Bl\u00e1caire mac Gofraid", ["Bl\u00e1caire mac Gofraid (died 948) was a Viking leader who ruled Dublin in the 10th century.", "He succeeded his brother Amla\u00edb mac Gofraid as king in 939 after the latter left Dublin to rule Northumbria.", "In the early years of his reign Bl\u00e1caire led raids on important Christian sites at Clonmacnoise and Armagh, but repeated attacks by the Irish of Leinster in 943 and 944 led to the sack of Dublin.", "A year later Bl\u00e1caire was replaced as King of Dublin (perhaps because of his inability to defend the city) by his cousin Amla\u00edb Cuar\u00e1n, who had succeeded Bl\u00e1caire's brother in Northumbria in 941, but had been driven out in 944.", "Amla\u00edb allied with Congalach Cnogba, overking of Brega and the Southern U\u00ed N\u00e9ill, one of those Irish kings who led the attack on Dublin in 944, and was possibly subject to him.", "They fought together against the Northern U\u00ed N\u00e9ill in 947, but they were defeated and the Dubliners suffered many casualties.", "That year Bl\u00e1caire was able to regain the kingship from Amla\u00edb and reversed the alliance with Congalach.", "Vikings raided into Congalach's lands in 948, leading to a battle between the Dubliners and the Southern U\u00ed N\u00e9ill in which Bl\u00e1caire was killed.", "With his rival dead, Amla\u00edb left for England to regain Northumbria and his brother Gofraid mac Sitriuc was made king in Dublin."]], ["Yasuichi Oshima", ["He is the father of manga artist Towa Oshima."]], ["Arthur Beauchamp", ["Arthur Beauchamp( 1827 \u2013 28 April 1910) was a Member of Parliament from New Zealand.", "He is remembered as the father of Harold Beauchamp, who rose to fame as chairman of the Bank of New Zealand and was the father of writer Katherine Mansfield."]], ["\u00d6sten M\u00e4kitalo", ["\u00d6sten M\u00e4kitalo( 27 August 1938 \u2013 16 June 2011) was a Swedish electrical engineer.", "He is considered to be the father of the Nordic Mobile Telephone( NMT) system and many times the father of cellular phone."]], ["Obata Toramori", ["He was the father of Obata Masamori."]], ["Lars Eliasson", ["He is the father of the later Member of Parliament Anna Eliasson."]], ["Olaf Guthfrithson", ["Olaf Guthfrithson (died 941) was a Viking leader who ruled Dublin and Viking Northumbria in the 10th century.", "He was the son of Gofraid ua \u00cdmair and great-grandson of \u00cdmar, making him one of the U\u00ed \u00cdmair.", "Olaf succeeded his father as King of Dublin in 934 and succeeded in establishing dominance over the Vikings of Limerick when he captured their king, Amla\u00edb Cenncairech, in 937.", "That same year he allied with Constantine II of Scotland in an attempt to reclaim the Kingdom of Northumbria which his father had ruled briefly in 927.", "The forces of Olaf and Constantine were defeated by the English led by \u00c6thelstan at the Battle of Brunanburh in 937.", "Olaf returned to Ireland in 938 but after \u00c6thelstan's death the following year Olaf left for York where he was quickly able to establish himself as king, with his brother Bl\u00e1caire mac Gofraid being left to rule in Dublin.", "Olaf and \u00c6thelstan's successor Edmund met in 939 at Leicester where they came to an agreement regarding the division of England between them.", "This agreement proved short-lived, however, and within a few years Vikings had occupied the Five Boroughs of Derby, Leicester, Lincoln, Nottingham and Stamford.", "Olaf died in 941 and was succeeded in Northumbria by his cousin Olaf Cuaran.", "At the time of his death, the Irish annals title him \"king of Danes\" and \"king of the Fair Foreigners and the Dark Foreigners\"."]], ["Ronald Mourad Cohen", ["Sir Ronald Mourad Cohen( born 1 August 1945) is an Egyptian- born British businessman and political figure.", "He is the chairman of The Portland Trust and Bridges Ventures.", "He has been described as\" the father of British venture capital\" and\" the father of social investment\"."]], ["Cleomenes II", ["Cleomenes II( died 309 BC) was Agiad King of Sparta from 369 to 309 BC.", "The son of Cleombrotus I, he succeeded his brother Agesipolis II.", "He was the father of Acrotatus I, the father of Areus I, and of Cleonymus, the father of Leonidas II."]], ["John Templeton (botanist)", ["John Templeton( 1766\u20131825) was an early Irish naturalist and botanist.", "He is often referred to as the\" Father of Irish Botany\".", "He was the father of naturalist, artist and entomologist Robert Templeton."]]]
supporting_facts: [["Bl\u00e1caire mac Gofraid", 1], ["Olaf Guthfrithson", 1]]
evidences: [["Bl\u00e1caire mac Gofraid", "sibling", "Amla\u00edb mac Gofraid"], ["Olaf Guthfrithson", "father", "Gofraid ua \u00cdmair"]]
answer: Gofraid ua Ímair