question: Who is Gilukhipa's paternal grandfather?
context: [["Shuttarna II", ["Shuttarna II (or \u0160uttarna) was a king of the Hurrian kingdom of Mitanni in the early 14th century BC.", "Shuttarna was a descendant and probably a son of", "the great Mitannian king Artatama I. He was an ally of the Egyptian Pharaoh Amenhotep III and the diplomatic dealings of the kings are briefly recorded in the Amarna letters.", "Shuttarna's daughter Kilu-Hepa (sometimes spelled Gilukhepa) was given to Amenhotep III in marriage to seal the alliance between the two royal houses in the Pharaoh's 10th regnal year, taking with her a great dowry.", "During the reign of Shuttarna, the kingdom of Mitanni reached its height of power and prosperity.", "From Alalakh in the west, Mitanni shared its border with Egypt in northern Syria, approximately by the river Orontes.", "The heart of the kingdom was in the Khabur River basin where the capital Washshukanni was situated.", "Assyria as well as Arrapha in the east were vassal kingdoms of Mitanni.", "The Hittites attempted to invade the northern border lands of Mitanni, but were defeated by Shuttarna.", "He was succeeded by his son, Tushratta, or possibly Artashumara, under dubious circumstances."]], ["Lyon Cohen", ["Lyon Cohen( 1868\u20131937) was a Polish- born Canadian businessman and a philanthropist.", "He was the grandfather of singer/ poet Leonard Cohen."]], ["John Westley", ["Rev. John Westley( 1636 \u2013 78) was an English nonconformist minister.", "He was the grandfather of John Wesley( founder of Methodism)."]], ["Fred Le Deux", ["Frederick\" Fred\" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).", "He is the grandfather of Tom Hawkins."]], ["John Mackay (poet)", ["John Mackay( 1656\u20131754), known as( The Blind Piper), was a Scottish Gaelic poet and composer, and the grandfather of William Ross."]], ["Kaya Alp", ["Kaya Alp was, according to Ottoman tradition, the son of K\u0131z\u0131l Bu\u011fa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertu\u011frul, and the great grandfather of the Ottoman Empire founder, Osman I."]], ["Henry Krause", ["Henry J.\" Red\" Krause, Jr.( August 28, 1913 \u2013 February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.", "He played college football at St. Louis University.", "He is the grandfather of Jennifer Krause", "He is the great grandfather of Payton Hoeing"]], ["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["Zhao Shoushan", ["Zhao Shoushan( 12 November 1894 \u2013 20 June 1965) was a KMT general and later Chinese Communist Party politician.", "He is the grandfather of Zhao Leji."]], ["Gilukhipa", ["Gilukhipa, or more probable \"Kilu-Hepa\" in Hurrian language, in the Egyptian language", "\"Kirgipa\" (fl.", "early 14th c. BCE), was the daughter of Shuttarna II, king of Mitanni.", "She was the sister of Tushratta (later King of Mitanni), Biria-Waza and Artashumara."]]]
supporting_facts: [["Gilukhipa", 2], ["Shuttarna II", 2]]
evidences: [["Gilukhipa", "father", "Shuttarna II"], ["Shuttarna II", "father", "Artatama I"]]
answer: Artatama I