question: Who lived longer, Les Sille or William Grant Still?
context: [["Grant Fulton", ["William Grant Fulton( born 21 June 1973) is a South African former field hockey player who competed in the 1996 Summer Olympics."]], ["William Grant (businessman)", ["William Grant( 18 December 1839 \u2013 1923) was a Scottish distiller and entrepreneur who founded William Grant& Sons, the manufacturer of Glenfiddich, as such, the first company in the world to market a true single malt whisky and a leading brand today."]], ["Les Sille", ["Les Sille( 12 April 1928 \u2013 7 April 2007) was an English footballer, who played as a winger in the Football League for Tranmere Rovers."]], ["Benedicta Chamberlain", ["Benedicta Chamberlain( born February 1944) is a British billionaire heiress, a major shareholder in William Grant& Sons."]], ["Josh Grant (footballer)", ["Joshua William Grant( born 11 October 1998) is an English professional footballer who plays as a defender for Plymouth Argyle, on loan from Chelsea."]], ["William Grant Black", ["William Grant Black( April 17, 1920 \u2013 July 7, 2013) was seventh bishop of the Diocese of Southern Ohio in The Episcopal Church."]], ["William Grant Stevenson", ["William Grant Stevenson( 1849\u20131919) was a Scottish sculptor and portrait painter."]], ["William Grant (seigneur)", ["William Grant( June 15, 1744 \u2013 October 5, 1805) was a Scottish- born businessman, seigneur and political figure in Lower Canada.", "He is frequently referred to as\" William Grant of St. Roch\" to differentiate him from his many cousins."]], ["William Grant Still", ["William Grant Still( May 11, 1895 \u2013 December 3, 1978) was an American composer of more than 150 works, including five symphonies and eight operas.", "Often referred to as\" the Dean\" of African- American composers, Still was the first American composer to have an opera produced by the New York City Opera.", "Still is known most for his first symphony, the\" Afro- American\", which was until the 1950s the most widely performed symphony composed by an American.", "Born in Mississippi, he grew up in Little Rock, Arkansas, attended Wilberforce University and Oberlin Conservatory of Music, and was a student of George Whitefield Chadwick and later Edgard Var\u00e8se.", "Of note, Still was the first African American to conduct a major American symphony orchestra, the first to have a symphony( his 1st Symphony) performed by a leading orchestra, the first to have an opera performed by a major opera company, and the first to have an opera performed on national television.", "Due to his close association and collaboration with prominent Afro -American literary and cultural figures such as Alain Locke and Langston Hughes, William Grant Still is considered to be part of the Harlem Renaissance movement."]], ["Verna Arvey", ["Verna Arvey", "( February 16, 1910 \u2013 November 22, 1987) was an American librettist, pianist and writer who is best known for her musical collaborations with her husband William Grant Still, a musician and composer."]]]
supporting_facts: [["Les Sille", 0], ["William Grant Still", 0]]
evidences: [["Les Sille", "date of birth", "12 April 1928"], ["Les Sille", "date of death", "7 April 2007"], ["William Grant Still", "date of birth", "May 11, 1895"], ["William Grant Still", "date of death", "December 3, 1978"]]
answer: William Grant Still