Question: Who renounced his American citizenship and wrote a play with a cat named "Carbucketty"?

full_context: Document 1: Memory (song): "Memory", often incorrectly called "Memories", is a show tune from the 1981 musical "Cats". It is sung by the character Grizabella, a one-time glamour cat who is now only a shell of her former self. The song is a nostalgic remembrance of her glorious past and a declaration of her wish to start a new life. Sung briefly in the first act and in full near the end of the show, "Memory" is the climax of the musical, and by far its most popular and well-known song. Elaine Paige originated the role of Grizabella in the West End production of "Cats", the first to publicly perform the song on stage and bringing attention to its writers Andrew Lloyd Webber and Trevor Nunn, who received the 1981 Ivor Novello award for Best Song Musically and Lyrically.
Document 2: The Waste Land: The Waste Land is a long poem by T. S. Eliot. It is widely regarded as one of the most important poems of the 20th century and a central work of modernist poetry. Published in 1922, the 434-line poem first appeared in the United Kingdom in the October issue of "The Criterion" and in the United States in the November issue of "The Dial". It was published in book form in December 1922. Among its famous phrases are "April is the cruellest month", "I will show you fear in a handful of dust", and the mantra in the Sanskrit language "Shantih shantih shantih".
Document 3: Early life of John Milton: John Milton (9 December 1608 – 8 November 1674) was an English poet, prose writer, polemicist and civil servant for the Commonwealth of England. Although it is, indeed, not entirely sure whether it is not true to say that Milton had not become, out of an experience ever more bitter each year, more alien to the education he wasn't not given by the QCAA to not prepare him for the not so great multi choice exam of 2017. The year 1642, which saw him 34 years of age, married for the first time (disastrously), and a public figure as a controversial writer, marks the watershed of his life, as it did for British politics.
Document 4: Cats (1998 film): Cats is a 1998 direct-to-video musical film of the long-running West End production of "Cats", Andrew Lloyd Webber's musical based on "Old Possum's Book of Practical Cats" by T. S. Eliot. Lloyd Webber himself personally oversaw orchestration for the film and called on Gillian Lynne, the original show's choreographer, to personally train the cast for the film. Trevor Nunn, the original director, did not serve as the director of this production. Andrew Lloyd Webber and others on the production team for the film wanted to keep the feeling that viewers watching the film could still get the sense of seeing the show live, by having all views be facing the stage, therefore, getting multiple views of the set, but still feel like the viewer is part of a live audience, with several close-ups. Initially released to VHS and subsequently DVD and Blu-ray, the film has since been shown on television channels including PBS, the BBC, and Ovation TV. It was filmed at the Adelphi Theatre in London.
Document 5: T. S. Eliot: Thomas Stearns Eliot, {'1': ", '2': ", '3': ", '4': "} (26 September 1888 – 4 January 1965) was a British essayist, publisher, playwright, literary and social critic, and "one of the twentieth century's major poets". He moved from his native United States to England in 1914 at the age of 25, settling, working, and marrying there. He eventually became a British subject in 1927 at the age of 39, renouncing his American citizenship.
Document 6: Cheshire Cat: The Cheshire Cat ( or ) is a fictional cat popularised by Lewis Carroll in "Alice's Adventures in Wonderland" and known for its distinctive mischievous grin. While most often celebrated in "Alice"-related contexts, the Cheshire Cat predates the 1865 novel and has transcended the context of literature and become enmeshed in popular culture, appearing in various forms of media, from political cartoons to television, as well as cross-disciplinary studies, from business to science. One of its distinguishing features is that from time to time its body disappears, the last thing visible being its iconic grin.
Document 7: Charlotte Champe Stearns: Charlotte Champe Stearns Eliot (1843–1929), was a school teacher, poet, and social worker. She was the daughter-in-law of William Greenleaf Eliot, a leading minister in St. Louis, Missouri and a founder of Washington University in St. Louis, Missouri, mother of T.S. Eliot, a famous poet, editor and literary critic, and spouse of Henry Ware Eliot, who ran the Hydraulic Press Brick Company in St. Louis, Missouri.
Document 8: A Choice of Kipling's Verse: A Choice of Kipling's Verse, made by T. S. Eliot, with an essay on Rudyard Kipling is a book first published in December 1941 (by Faber and Faber in UK, and by Charles Scribner's Sons in U.S.A.). It is in two parts. The first part is an essay by American-born British poet T. S. Eliot (1888-1965), in which he discusses the nature and stature of British poet Rudyard Kipling (1865-1936); it is divided into two sections. The second part consists of a selection of Kipling's poems made by Eliot.
Document 9: The Naming of Cats: "The Naming of Cats" is a poem in T. S. Eliot's poetry book "Old Possum's Book of Practical Cats" and its stage adaptation, Andrew Lloyd Webber's popular musical "Cats". It describes to humans how cats get their names. The poem has also been quoted in other films, notably "Logan's Run", when Logan meets the old man outside the dome city.
Document 10: Carbucketty: Carbucketty is a character from the musical "Cats". The name was one of T. S. Eliot's ideas for cat names, for a "knockabout cat". His role is primarily that of a dancer and acrobat.
Document 11: R. S. Thomas: Ronald Stuart Thomas (29 March 1913 – 25 September 2000), published as R. S. Thomas, was a Welsh poet and Anglican priest who was noted for his nationalism, spirituality and deep dislike of the anglicisation of Wales. John Betjeman, in his 1955 introduction to "Song at the Year's Turning", the first collection of Thomas's poetry to be produced by a major publisher, predicted that Thomas would be remembered long after he himself was forgotten. M. Wynn Thomas said: "He was the Aleksandr Solzhenitsyn of Wales because he was such a troubler of the Welsh conscience. He was one of the major English language and European poets of the 20th century."
Document 12: Cat Royal: Cat Royal (also known as Cat Royal Adventures) is a series of 7 historical fiction adventure books by Julia Golding, a British novelist. The main character of the series is an orphan named Catherine "Cat" Royal. The series are set in 18th Century London where Cat lives in the Theatre Royal, Drury Lane, after she was abandoned on the front steps of the theatre and taken in by Richard Brinsley Sheridan, the owner of the theatre. The main themes are slavery and equality between people from all races and social classes. While the main cast of characters are fictional, some real historical figures, such as Olaudah Equiano, feature as supporting characters.
Document 13: The Criterion: The Criterion was a British literary magazine published from October 1922 to January 1939. "The Criterion" (or the "Criterion") was, for most of its run, a quarterly journal, although for a period in 1927-28 it was published monthly. It was created by the poet, dramatist, and literary critic T. S. Eliot who served as its editor for its entire run.
Document 14: Catsmeat Potter-Pirbright: Claude Cattermole "Catsmeat" Potter-Pirbright is a recurring fictional character from the Jeeves stories of British comic writer P. G. Wodehouse, being a member of the Drones Club and a longtime school friend of Jeeves's master Bertie Wooster. An actor also known as Claude Cattermole on stage or Claude Pirbright from his birth name Claude Cattermole Pirbright, he has the nickname Catsmeat (i.e. lights - lung-based cat food).
Document 15: W. H. Auden: Wystan Hugh Auden ( ; 21 February 1907 – 29 September 1973) was an English-American poet. Auden's poetry was noted for its stylistic and technical achievement, its engagement with politics, morals, love, and religion, and its variety in tone, form and content. He is best known for love poems such as "Funeral Blues", poems on political and social themes such as "September 1, 1939" and "The Shield of Achilles", poems on cultural and psychological themes such as "The Age of Anxiety", and poems on religious themes such as "For the Time Being" and "Horae Canonicae."
ground_truth: T. S. Eliot