question: Who is the paternal grandmother of Iyoas I?
context: [["Hubba bint Hulail", ["Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic\" Nab\u012b\"( Prophet) Muhammad ibn Abdullah."]], ["Iyoas I", ["Iyoas I or Joas I", "(Ge'ez:", "\u12a2\u12ee\u12a0\u1235, throne name Adyam Sagad, Ge'ez: \u12a0\u12f5\u12eb\u121d \u1230\u1308\u12f5, \"to whom the confines of the earth bow\")", "(d. 14 May 1769) was \"n\u0259gus\u00e4 n\u00e4g\u00e4st\" (27 June 1755 \u2013 7 May 1769) of Ethiopia, and a member of the Solomonic dynasty.", "He was the infant son of Iyasu II and Wubit (Welete Bersabe), the daughter of an Oromo chieftain of the Yejju district."]], ["Kaoru Hatoyama", ["After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama."]], ["G\u00fclbahar Hatun (wife of Mehmed II)", ["G\u00fclbahar Hatun( 1432 \u2013 1492) was the consort of Sultan Mehmed II, and mother of Sultan Bayezid II of the Ottoman Empire and the grandmother of Selim I."]], ["Tjuyu", ["Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.", "She is the grandmother of Akhenaten, and great grandmother of Tutankhamun."]], ["Hannah Arnold", ["Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children."]], ["Iyasu II", ["Iyasu II or Joshua II (Ge'ez \u12a2\u12eb\u1231; 21 October 1723 \u2013 27 June 1755) was \"n\u0259gus\u00e4 n\u00e4g\u00e4st\"", "(throne name Alem Sagad, Ge'ez \u12d3\u1208\u121d \u1230\u1308\u12f5 \u02bfAl\u00e4m S\u00e4g\u00e4d, \"to whom the world bows\")", "(19 September 1730 \u2013 27 June 1755) of Ethiopia, and a member of the Gondar branch of the Solomonic dynasty.", "He was the son of Emperor Bakaffa and Empress Mentewab (also known by her Baptismal name of Welete Giyorgis).", "The Empress Mentewab played a major role in Iyasu's reign, perhaps against her will.", "Shortly after he was proclaimed Emperor, a rival claimant assaulted the Royal Enclosure for eight days, only leaving the capital Gondar when an army of 30,000 from Gojjam appeared.", "Although the rebels failed to penetrate its walls, nonetheless much of Gondar was left in ruins.", "Instead of taking the title of regent upon the succession of her underage son, Empress Mentewab had herself crowned as co-ruler, becoming the first woman to be crowned in this manner in Ethiopian history.", "Empress Mentewab wielded significant authority throughout the reign of her son, and well into the reign of her grandson as well."]], ["Anne Denman", ["Anne Denman( 1587\u20131661) was born in Olde Hall, Retford, Nottinghamshire.", "Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne."]], ["Mona Hopton Bell", ["Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.", "She was the grandmother of the painter Jean H. Bell."]], ["H\u00fcma Hatun", ["H\u00fcma Hatun (1410 \u2012 September 1449) was the fourth wife of Ottoman Sultan Murad II and mother of Mehmed II and the grandmother of Bayezid II."]]]
supporting_facts: [["Iyoas I", 4], ["Iyasu II", 3]]
evidences: [["Iyoas I", "father", "Iyasu II"], ["Iyasu II", "mother", "Mentewab"]]
answer: Mentewab