question: Who is Tanishaa Mukerji's maternal grandfather?
context: [["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)."]], ["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."]], ["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["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."]], ["Tanishaa Mukerji", ["Tanisha Mukerji is an Indian film actress known for her works in Indian movies, Bollywood and Telugu and Tamil films.", "Part of the Mukherjee-Samarth family, she is the daughter of filmmaker Shomu Mukherjee and actress Tanuja Samarth and the younger sister of Bollywood actress Kajol.", "She made her debut with the Hindi film", "\"Sssshhh...\" in 2003.", "She had her first hit with Ram Gopal Varma's \"Sarkar\", appearing alongside Amitabh Bachchan and Abhishek Bachchan.", "She also was a contestant, and also ended up as the first runner-up on the reality show \"Bigg Boss 7\" in 2012"]], ["Tanuja", ["Tanuja Samarth, popularly known as Tanuja, is an Indian film actress, who predominantly works in the Hindi film industry.", "Part of the Mukherjee-Samarth family, she is the daughter of actress Shobhna Samarth and producer Kumarsen Samarth, and was married to filmmaker Shomu Mukherjee, with whom she has two daughters, actresses Kajol and Tanisha.", "A recipient of two Filmfare Awards, Tanuja is best known for her roles in the Hindi films like \" Memdidi\" (1961), \"Chand Aur Suraj\" (1965), \"Baharen Phir Bhi Aayengi\" (1966), \"Jewel Thief\" (1967), \"Nai Roshni\" (1967), \"Jeene Ki Raah\" (1969), \"Haathi Mere Saathi\" (1971), \"Anubhav\" (1971), \"Mere Jeevan Saathi\" (1972) and \"Do Chor\" (1972).", "Her pairing with actors Sanjeev Kumar, Rajesh Khanna and Dharmendra used to be popular in late 60s and early 70s."]], ["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"]], ["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."]]]
supporting_facts: [["Tanishaa Mukerji", 1], ["Tanuja", 1]]
evidences: [["Tanisha Mukerji", "mother", "Tanuja Samarth"], ["Tanuja Samarth", "father", "Kumarsen Samarth"]]
answer: Kumarsen Samarth