question: What nationality is Zainab Sultan Begum's husband?
context: [["Nayelly Hern\u00e1ndez", ["Nayelly Hern\u00e1ndez( born 23 February 1986) is a former Mexican female professional squash player.", "She has represented Mexico internationally in several international competitions including the Central American and Caribbean Games, Pan American Games, Women's World Team Squash Championships.", "Nayelly achieved her highest career ranking of 57 in October 2011 during the 2011 PSA World Tour.", "Her husband Chris Walker whose nationality is English is also a professional squash player.", "She joined the Trinity College in 2008 as the first Mexican female to join a US college for squash and graduated in 2010."]], ["Masuma Sultan Begum (daughter of Babur)", ["Masuma Sultan Begum( born 1508) was a Mughal princess and the daughter of the first Mughal emperor, Babur.", "She is frequently mentioned in the\" Humayun- nama\" by her sister, Gulbadan Begum, who calls her sister' Elder sister Moon'(\" mah chacha\")."]], ["Zainab Sultan Begum", ["Zainab Sultan Begum was Queen consort of Ferghana Valley and Kabul as the second wife of the first Emperor Babur.", "She like two of his other wives Aisha Sultan Begum and Masuma Sultan Begum", "was a direct cousin of the Babur.", "She was among one of the first Mughal cousins to marry among the own family, which later became a common practice, which would be especially be followed by Humayun, the second Mughal emperor who succeeded Babur after his death in 1530."]], ["Ali Rahuma", ["Ali Khalifa Rahuma( born May 16, 1982) is a Libyan football midfielder who's nationality is Libyan.", "He currently plays for Al- Ittihad, and is a member of the Libya national football team."]], ["Fakhr-un-Nissa", ["Fakhr- un- Nissa( died 1501) was a Mughal princess as the eldest child of the first Mughal Emperor Babur and his Empress consort Aisha Sultan Begum.", "Fakhr- un- Nissa was born in 1501 in Samarkand to the nineteen- year- old Babur and his first wife, Aisha Sultan Begum.", "Upon her birth, she was given the name of Fakhr- un- Nissa(\" Glory of Women\").", "The princess died a month or forty days after her birth, and her death grieved Babur the most as he dearly loved his daughter."]], ["Aisha Sultan Begum", ["Aisha Sultan Begum was Queen consort of Ferghana Valley and Samarkand as the first wife of Emperor Babur, the founder of the Mughal Empire and the first Mughal emperor.", "Aisha was a first cousin of her husband and was a Timurid princess by birth.", "She was the daughter of Babur's paternal uncle, Sultan Ahmed Mirza, the King of Samarkand and Bukhara."]], ["Babur", ["Babur (14 February 148326 December 1530), born Zah\u012br ud-D\u012bn Muhammad, was the founder and first Emperor of the Mughal dynasty in South Asia.", "He was a direct descendant of Emperor Timur (Tamerlane) from what is now Uzbekistan.", "Babur was born in Andijan, in the Fergana Valley, in modern Uzbekistan.", "He was the eldest son of Umar Sheikh Mirza, governor of Fergana and great-great grandson of Timur.", "Babur ascended the throne of Fergana in its capital Akhsikent in 1494 at the age of twelve and faced rebellion.", "He conquered Samarkand two years later, only to lose Fergana soon after.", "In his attempt to reconquer Fergana, he lost control of Samarkand.", "In 1501, his attempt to recapture both the regions went in vain as he was defeated by Muhammad Shaybani Khan.", "In 1504, he conquered Kabul, which was under the rule of the infant heir of Ulugh Beg II.", "Babur formed a partnership with Safavid ruler Ismail I and reconquered parts of Turkistan, including Samarkand, only to again lose it and the other newly conquered lands to the Sheybanids.", "After losing Samarkand for the third time, Babur turned his attention to India.", "At that time, the Indo-Gangetic Plain of the Indian subcontinent was ruled by Ibrahim Lodi of the Afghan Lodi dynasty, whereas Rajputana was ruled by a Hindu Rajput Confederacy, led by Rana Sanga of Mewar.", "Babur defeated Ibrahim Lodi at the First Battle of Panipat in 1526 CE and founded the Mughal empire.", "He faced opposition from Rana Sanga, who at first promised to help Babur defeat Ibrahim Lodi", "however he later backed out upon knowing that Babur had plans to stay in India.", "The Rana prepared an army of Rajputs and Afghans to force Babur out of India, however the Rana was defeated in the Battle of Khanwa after which he was poisoned to death by his own men.", "Babur married several times.", "Notable among his sons are Humayun, Kamran Mirza and Hindal Mirza.", "Babur died in 1530 in Agra and was succeeded by Humayun.", "He was first buried in Agra but, as per his wishes, his remains were moved to Kabul and reburied.", "Being a patrilineal descendant of Timur, Babur considered himself a Timurid and Chagatai Turkic.", "He is considered a national hero in Uzbekistan and Kyrgyzstan.", "Many of his poems have also become popular folk songs.", "He wrote the \"Baburnama\" in Chaghatai Turkic which was translated into Persian during Akbar's reign."]], ["Baglan Mailybayev", ["Baglan Mailybayev( in Kazakh \u0411\u0430\u0493\u043b\u0430\u043d \u0410\u0441\u0430\u0443\u0431\u0430\u0439\u04b1\u043b\u044b \u041c\u0430\u0439\u043b\u044b\u0431\u0430\u0435\u0432) was born on 20 May 1975 in Zhambyl region, Kazakhstan.", "His nationality is Kazakh.", "He is a politician of the Republic of Kazakhstan, Deputy Head of the Presidential Administration of the Republic of Kazakhstan, Doctor of Law( 2002)( under the supervision of Professor Zimanov S.Z.- scientific advisor and academician of National Academy of Sciences of the Republic of Kazakhstan) and Ph.D. in Political Science( 1998)."]], ["Eleni Gabre-Madhin", ["Eleni Zaude Gabre- Madhin, an Ethiopian economist with Swiss nationality, is a former Chief Executive Officer of the Ethiopia Commodity Exchange( ECX).", "She has had many years of experience working on agricultural markets \u2013 particularly in Sub- Saharan Africa \u2013 and has held senior positions in the World Bank, the International Food Policy Research Institute( Washington), and United Nations( Geneva)."]], ["Masuma Sultan Begum", ["Masuma Sultan Begum( died 1509) was the Queen consort of Ferghana Valley and Samarkand as the fourth wife of Emperor Babur, the founder of the Mughal Empire and the first Mughal emperor.", "Masuma was a first cousin of her husband and was a Timurid princess by birth.", "She was the fifth and youngest daughter of Babur's paternal uncle, Sultan Ahmed Mirza, the King of Samarkand and Bukhara."]]]
supporting_facts: [["Zainab Sultan Begum", 0], ["Babur", 12]]
evidences: [["Zainab Sultan Begum", "spouse", "Babur"], ["Babur", "country of citizenship", "Mughal Empire"]]
answer: Mughal Empire