In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Input: Consider Input: Passage: The son of Margaret Mellis and Adrian Stokes, he was born in St Ives and studied at the Slade School of Fine Art. He pursued postgraduate studies at the Brooklyn Museum Art School after being awarded a Beckmann Fellowship. He taught at Reading Art School and the Bath Academy in Corsham and exhibited his paintings in London, including a show at the Serpentine Gallery. In 1971, Stokes founded publishing firm Weproductions, which produced artist's books; from 1974, he operated in partnership with Helen Douglas. In 2002, Stokes moved to East Anglia to care for his mother. He redirected his focus to sculpture, which he exhibited at the Kettle's Yard open house in 2008 and at shows in various galleries.
 Link Information:  so her father David Barclay Mellis-Smith could join up. Question: What was the name of Telfer's maternal grandfather?

Output: Answer:  David Barclay Mellis-Smith


Input: Consider Input: Passage: Williamson's early film work included roles in M*A*S*H (1970) and Tell Me That You Love Me, Junie Moon (1970). He portrayed an escaped slave who flees westward in The Legend of Nigger Charley (1972). He played the role of an African-American gangster in the film Black Caesar (1973) and its subsequent sequel, Hell Up in Harlem (also 1973). Williamson also starred in the 1975 western film Boss Nigger, in which he played the title role. After this he appeared as an actor in several films, most of which are considered to be of the "blaxploitation" genre. Williamson starred alongside Peter Boyle and Eli Wallach in the movie Crazy Joe (1974). In 1974, Williamson was selected by the ABC television network as a commentator on Monday Night Football to replace Don Meredith, who had left to pursue an acting and broadcasting career at rival network NBC. Williamson was used on a few pre-season broadcasts, but was quickly declared unsuitable by ABC. He was relieved of his duties at the beginning of the regular season, becoming the first MNF personality not to endure for an entire season. He was replaced by the fellow former player (and fellow Gary, Indiana, native) Alex Karras.
 Link Information: Joseph "Dandy" Don Meredith (April 10, 1938 – December 5, 2010)  Question: At what age was Don Meredith the year that Fred Williamson replaced him as a commentator on Monday Night Football?

Output: Answer: 36


Input: Consider Input: Passage: Folliott Herbert Sandford, the son of a barrister, was born on 28 October 1906. He was educated at Winchester College and New College, Oxford, where he obtained first-class degrees in Classics and in Law. He joined the Air Ministry as a civil servant in 1930, working as Principal Private Secretary to four Secretaries of State for Air between 1937 and 1940: Viscount Swinton, Sir Kingsley Wood, Sir Samuel Hoare and Sir Archibald Sinclair. In 1941 and 1942, he was attached to RAF Ferry Command in Montreal, Quebec, Canada; from 1942 to 1944, he was the secretary to the office of the Resident Minister for West Africa. He returned to the Air Ministry in 1944, rising from Assistant Under-Secretary of State to become Deputy Under-Secretary of State from 1947 to 1958. He was appointed a Companion of the Order of St Michael and St George (CMG) and a Knight Commander of the Order of the British Empire (KBE) in 1949. He became a Fellow of New College on his appointment as Registrar of the University of Oxford in 1958, succeeding Sir Douglas Veale, and held both positions until retiring in 1972. On his retirement, he was appointed an Honorary Fellow of New College and Wolfson College, and was awarded an honorary doctorate by the university. He was Master of the Skinners' Company from 1975 to 1976. He was twice married: to Gwendoline (née Masters) from 1935 until her death in 1977, and then to Peggy Young (née Odgear) from 1982 until her death in 1984. Sandford died on 5 July 1986. The historian Brian Harrison describes him as "unobtrusively providing expertise and continuity" and a hard worker, but one who "lacked Veale's vision and sense of proportion" and who suffered from having to try to match the standards set for the role by Veale.
 Link Information: Philip Cunliffe-Lister, 1st Earl of Swinton, (1 May 1884 Question: Who is the oldest person that Sandford worked as Principal Private Secretary to?


Output: Answer: Samuel John Gurney Hoare