Question: What type of authors are Alfred Bester and Iain Banks?

full_context: Document 1: The Wasp Factory: The Wasp Factory is the first novel by Scottish writer Iain Banks, published in 1984. Before the publication of "The Wasp Factory," Banks had written several science fiction novels that had not been accepted for publication. Banks decided to try a more mainstream novel in the hopes that it would be more readily accepted, and wrote about a psychopathic teenager living on a remote Scottish island. According to Banks, this allowed him to treat the story as something resembling science fiction – the island could be envisaged as a planet, and Frank, the protagonist, almost as an alien. Following the publication and success of "The Wasp Factory", Banks began to write full-time and would go on to write several more novels before his death in 2013, including several acclaimed science fiction novels that formed the Culture series.
Document 2: Hugo Award for Best Professional Magazine: The Hugo Awards are given every year by the World Science Fiction Society for the best science fiction or fantasy works and achievements of the previous year. The award is named after Hugo Gernsback, the founder of the pioneering science fiction magazine "Amazing Stories", and was once officially known as the Science Fiction Achievement Award. The award has been described as "a fine showcase for speculative fiction" and "the best known literary award for science fiction writing". The Hugo Award for Best Professional Magazine was given each year for professionally edited magazines related to science fiction or fantasy, published in English, and which has published four or more issues with at least one issue appearing in the previous calendar year. Awards are also given out for non-professional magazines in the fanzine category, and for semi-professional magazines in the semiprozine category.
Document 3: Hugo Award for Best Fan Artist: The Hugo Awards are presented every year by the World Science Fiction Society for the best science fiction or fantasy works and achievements of the previous year. The award is named after Hugo Gernsback, the founder of the pioneering science fiction magazine "Amazing Stories", and was once officially known as the Science Fiction Achievement Award. The award has been described as "a fine showcase for speculative fiction" and "the best known literary award for science fiction writing". The Hugo Award for Best Fan Artist is given each year for artists of works related to science fiction or fantasy which appeared in low- or non-paying publications such as semiprozines or fanzines. A Hugo Award for professional artists is also given. The fan award was first presented in 1967 and has been awarded annually. Beginning in 1996, Retrospective Hugo Awards, or "Retro Hugos", have been available to be awarded for years 50, 75, or 100 years prior in which no awards were given. To date, Retro Hugo awards have been awarded for 1939, 1941, 1946, 1951, and 1954, although the 1939, 1941, and 1954 Retro Hugos received insufficient nominations for the Fan Artist Hugo to make the ballot.
Document 4: Redemolished: Redemolished is a collection of short stories, interviews, and other articles and essays by science fiction author Alfred Bester. Published in 2000 (thirteen years after Bester's death) by iBooks, inc, ISBN  , edited by Richard Raucci.
Document 5: Kevin MacNeil: Kevin MacNeil is a Scottish novelist, poet and playwright born and raised in the Outer Hebrides. His latest novel, "The Brilliant & Forever", was published by Polygon in March 2016. MacNeil's previous novels, "A Method Actor's Guide to Jekyll and Hyde" (Polygon, 2011) and best-selling debut, "The Stornoway Way" (Hamish Hamilton, 2005), were both published to widespread critical acclaim. MacNeil’s first book, the poetry collection "Love and Zen in the Outer Hebrides" (Canongate, 1998), won the Tivoli Europa Giovani International Poetry Prize for best poetry collection published in Europe by a writer under 35. He is also the author of "Be Wise Be Otherwise" (Canongate) and the plays "Sweetness", an adaptation of a novel by Swedish author Torgny Lindgren, and "The Callanish Stoned" (Theatre Hebrides), and his short stories have been published extensively. MacNeil's anthology of poetry from the Scottish islands, "These Islands, We Sing", was published by Polygon in June 2011.
Document 6: Alfred Bester: Alfred Bester (December 18, 1913 – September 30, 1987) was an American science fiction author, TV and radio scriptwriter, magazine editor and scripter for comic strips and comic books. Though successful in all these fields, he is best remembered for his science fiction, including "The Demolished Man", winner of the inaugural Hugo Award in 1953.
Document 7: Hugo Award: The Hugo Awards are a set of literary awards given annually for the best science fiction or fantasy works and achievements of the previous year. The awards are named after Hugo Gernsback, the founder of the pioneering science fiction magazine "Amazing Stories", and were officially named the Science Fiction Achievement Awards until 1992. Organized and overseen by the World Science Fiction Society, the awards are given each year at the annual World Science Fiction Convention as the central focus of the event. They were first given in 1953, at the 11th World Science Fiction Convention, and have been awarded every year since 1955. Over the years that the award has been given, the categories presented have changed; currently Hugo Awards are given in more than a dozen categories, and include both written and dramatic works of various types.
Document 8: Iain Gale: Iain Gale is a journalist and author born in 1959, who writes military novels. His book "Four Days in June", about the Battle of Waterloo, was well received and acclaimed by Bernard Cornwell. He is also the writer of eleven non-fiction books.
Document 9: Alfred Bester (Babylon 5): Alfred Bester is a "Babylon 5" character played by Walter Koenig. He is a senior Psi Cop and a recurring antagonist in the series. J. Michael Straczynski named the character after the science fiction writer Alfred Bester, since telepathy is a recurring theme in his work (most notably "The Demolished Man", which partly may have inspired the Psi corps and the "death of personality" legal punishment in the Babylon 5 universe).
Document 10: The Demolished Man: The Demolished Man is a science fiction novel by American writer Alfred Bester, which was the first Hugo Award winner in 1953. An example of inverted detective story, it was first serialized in three parts, beginning with the January 1952 issue of "Galaxy Science Fiction", followed by publication of the novel in 1953. The novel is dedicated to "Galaxy"'s editor, H. L. Gold, who made suggestions during its writing. Bester's title was "Demolition!", but Gold talked him out of it.
Document 11: Hugo Award for Best Related Work: The Hugo Awards are given every year by the World Science Fiction Society for the best science fiction or fantasy works and achievements of the previous year. The award is named after Hugo Gernsback, the founder of the pioneering science fiction magazine "Amazing Stories", and was once officially known as the Science Fiction Achievement Award. The award has been described as "a fine showcase for speculative fiction" and "the best known literary award for science fiction writing". The Hugo Award for Best Related Work is given each year for primarily non-fiction works related to science fiction or fantasy, published in English or translated into English during the previous calendar year. Awards are also given out for works of fiction in the novel, novella, novelette, and short story categories.
Document 12: Sean Russell (author): Sean Thomas Russell (born 30 January 1952) is a Canadian writer of fantasy, and of historical novels featuring the Royal Navy. His work has been published under the names Sean Russell and S. Thomas Russell as well as his full name, and he has collaborated with Ian Dennis (also born 1952) under the joint pseudonym T.F. Banks.
Document 13: Scott Mackay: Scott Mackay is a Canadian mystery and science fiction author from Toronto, Ontario, where he still lives with his wife and two children. He is the award-winning author of eleven novels and over forty short stories. His short story, "Last Inning", won the 1999 Arthur Ellis Award for best short mystery fiction. Another story, "Reasons Unknown", won the Okanagan Award for Best Literary Short Fiction in early 1999. His first Barry Gilbert mystery, "Cold Comfort", was nominated for the Arthur Ellis Award for best mystery novel, and his science fiction novel, "The Meek", was a finalist for the prestigious U.S. John Campbell Memorial Award for Best SF Novel of 2001. His novels have been published in six languages.
Document 14: Transition (novel): Transition is a novel by Iain Banks, first published in 2009. The American edition was published under the name "Iain M. Banks", which is the name Banks used for his science fiction work.
Document 15: Iain Banks: Iain Banks (16 February 1954 – 9 June 2013) was a Scottish author. He wrote mainstream fiction under the name Iain Banks and science fiction as Iain M. Banks, including the initial of his adopted middle name Menzies ( ).
ground_truth: fiction author