question: Who is the spouse of the director of film Manamagan Thevai?
context: [["Mehdi Abrishamchi", ["Mehdi Abrishamchi is an Iranian People's Mujahedin of Iran( MEK) politician who has been described as\" the right hand man of Massoud Rajavi\".", "He is the former spouse of the group's current leader, Maryam Rajavi, whom he divorced so that she could become the spouse of Massoud Rajavi."]], ["Princess Auguste of Bavaria (1875\u20131964)", ["Princess Auguste of Bavaria( 28 April 1877 \u2013 25 June 1964) was a member of the Bavarian Royal House of Wittelsbach and the spouse of Archduke Joseph August of Austria."]], ["Adib Kheir", ["Adib Kheir was a leading Syrian nationalist of the 1920s.", "He was the owner of the Librairie Universelle in Damascus.", "His granddaughter is the spouse of Manaf Tlass."]], ["Sophia Magdalena of Denmark", ["Sophia Magdalena of Denmark (3 July 1746 \u2013 21 August 1813) was Queen of Sweden as the spouse of King Gustav III."]], ["Maria Teresa, Grand Duchess of Luxembourg", ["Maria Teresa, Grand Duchess of Luxembourg( born Mar\u00eda Teresa Mestre y Batista; on 22 March 1956), is the spouse of Grand Duke Henri."]], ["Heather D. Gibson", ["Heather Denise Gibson is a Scottish economist currently serving as Director- Advisor to the Bank of Greece( since 2011).", "She is the spouse of Euclid Tsakalotos, former Greek Minister of Finance."]], ["Marie-Louise Coidavid", ["Marie Louise Coidavid( 1778 \u2013 March 11, 1851), was the Queen of the Kingdom of Haiti 1811 \u2013 20 as the spouse of Henri I of Haiti."]], ["Gertrude of Bavaria", ["Gertrude of Saxony and Bavaria( 1152/55\u20131197) was Duchess of Swabia as the spouse of Duke Frederick IV, and Queen of Denmark as the spouse of King Canute VI."]], ["P. S. Ramakrishna Rao", ["P. S. Ramakrishna Rao (b: 12 October 1918 - d: 7 September 1986) was a veteran Telugu film director and producer.", "He married Bhanumathi Ramakrishna, a multi-talented film artist from South India, on 8 August 1943.", "Raavu Balasaraswathi is his sister."]], ["Manamagan Thevai", ["Manamagan Thevai\"  is a 1957 Indian Tamil-language romantic comedy film directed by P. S. Ramakrishna Rao.", "He, along with his wife Bhanumathi, produced the film under their company Bharani Pictures.", "The film features Bhanumathi and Sivaji Ganesan in the lead roles.", "It was simultaneously produced in Telugu as Varudu Kaavaali\" with K. Jaggaiah replacing Sivaji Ganesan. \"", "Manamagan Thevai\" was a commercial success, running for over 100 days in theatres."]]]
supporting_facts: [["Manamagan Thevai", 0], ["P. S. Ramakrishna Rao", 1]]
evidences: [["Manamagan Thevai", "director", "P. S. Ramakrishna Rao"], ["P. S. Ramakrishna Rao", "spouse", "Bhanumathi Ramakrishna"]]
answer: Bhanumathi Ramakrishna