Please answer the following question: Information:  - Karen Traviss is a science fiction author from Wiltshire, England. She is the author of the Wess'Har series, and is also known for writing tie-in material based on "Star Wars", "Gears of War", "Halo", and "G.I. Joe". Her work crosses various forms of media including novels, short stories, comics, and video games.  - The Legacy of the Force is a series of nine science fiction novels set in the "Star Wars" expanded universe, taking place approximately 40 years after the events of "" (in Star Wars chronology, from 40 ABY to 41 ABY). The series was written by Troy Denning, Aaron Allston and Karen Traviss in an alternating cycle.  - The Empire Strikes Back (also known as Star Wars: Episode V  The Empire Strikes Back) is a 1980 American epic space opera film directed by Irvin Kershner. Leigh Brackett and Lawrence Kasdan wrote the screenplay, with George Lucas writing the film's story and serving as executive producer. The second installment in the original "Star Wars" trilogy, it was produced by Gary Kurtz for Lucasfilm Ltd. and stars Mark Hamill, Harrison Ford, Carrie Fisher, Billy Dee Williams, Anthony Daniels, David Prowse, Kenny Baker, Peter Mayhew and Frank Oz.  - The Death Star refers to any of several fictional mobile space stations and galactic superweapons appearing in the "Star Wars" science-fiction franchise created by George Lucas. The DS-1 Platform was stated to be 160 km in diameter with a volume of 7,240,000 square kilometers, or approximately 1/25 the size of Earth's Moon. It was crewed by an estimated 1.7 million military personnel and 400,000 droids. The second Death Star was significantly larger160km in diameterand more advanced than its predecessor. Both versions of these dwarf planet-sized fortresses were designed for massive power projection capabilities, capable of destroying an entire planet with one blast from their superlasers.  - Mark Richard Hamill (born September 25, 1951) is an American actor, voice actor, and writer. He is known for playing Luke Skywalker in the "Star Wars" film series. His other works include "Corvette Summer" (1978) and "The Big Red One" (1980), among other television shows and movies. Hamill has also appeared on stage in several theater productions, primarily during the 1980s.  - David Prowse, MBE (born 1 July 1935) is an English bodybuilder, weightlifter and character actor in British film and television. Worldwide, he is best known for playing Darth Vader in the original "Star Wars" trilogy, though the character's voice was provided by James Earl Jones. In the United Kingdom, he is also remembered as the Green Cross Code man, a character used in British road safety advertising.  - Troy Denning (born 1958) is a fantasy and science fiction author and game designer who has written more than two dozen novels.  - Howard G. Kazanjian (born 1942) is an American film producer known for "Raiders of the Lost Ark" and "Return of the Jedi". Kazanjian is also a former 8-year Vice President of Lucasfilm, Ltd., and a published non-fiction author.  - Aaron Dale Allston (December 8, 1960  February 27, 2014) was an American game designer and author of many science fiction books, notably "Star Wars" novels. His works as a game designer include game supplements for role-playing games, several of which served to establish the basis for products and subsequent development of TSR's "Dungeons & Dragons" game setting Mystara. His later works as a novelist include those of the "" series: "Wraith Squadron", "Iron Fist", "Solo Command", "Starfighters of Adumar", and "Mercy Kill". He wrote two entries in the "New Jedi Order" series: "" and "". Allston wrote three of the nine Legacy of the Force novels: "Betrayal", "Exile", and "Fury", and three of the nine Fate of the Jedi novels: "Outcast", "Backlash", and "Conviction".  - Return of the Jedi (also known as Star Wars: Episode VI  Return of the Jedi) is a 1983 American epic space opera film directed by Richard Marquand. The screenplay by Lawrence Kasdan and George Lucas was from a story by Lucas, who was also the executive producer. It was the third and final installment in the original "Star Wars" trilogy and the first film to use THX technology. The film is set one year after "The Empire Strikes Back" and was produced by Howard Kazanjian for Lucasfilm Ltd. The film stars Mark Hamill, Harrison Ford, Carrie Fisher, Billy Dee Williams, Anthony Daniels, David Prowse, Kenny Baker, Peter Mayhew and Frank Oz.  - Starfighters of Adumar (1999) is the ninth book in the "" series. It was written by Aaron Allston.  - "The Wess'har Wars" series is a six book science fiction novel series written by author Karen Traviss and is set several hundred years in the future. It involves humanity's contact with a number of alien species with conflicting interests and beliefs, while her central character, Shan Frankland, is caught in the middle of a coming conflict. All six novels have been published by Eos, an imprint of HarperCollins: "City of Pearl", "Crossing the Line", "The World Before", "Matriarch" and "Ally" (formerly "Task Force"). The last book of the series, "Judge" was released on March 25, 2008.  - Solo Command (1999) is the seventh novel in the "" series, and the final book to detail the adventures of Wraith Squadron. It was written by Aaron Allston.  - Harrison Ford (born July 13, 1942) is an American actor and film producer. He gained worldwide fame for his starring roles as Han Solo in the "Star Wars" film series and as the title character of the "Indiana Jones" film series. Ford is also known for his roles as Rick Deckard in the neo-noir dystopian science fiction film "Blade Runner" (1982), John Book in the thriller "Witness" (1985), for which he was nominated for the Academy Award for Best Actor, and Jack Ryan in the action films "Patriot Games" (1992) and "Clear and Present Danger" (1994).  - Mystara is a campaign setting for the "Dungeons & Dragons" fantasy role playing game. It was the default setting for the "Basic" version of the game popular through the 1980s.  - Betrayal is the first of nine books in the Legacy of the Force series , which is set in the fictional Star Wars expanded universe . The book is written by Aaron Allston and was released in hardcover on May 30 , 2006 . The cover artist is Jason Felix . The paperback edition was released in May 2007 and also contained a small excerpt from Bloodlines by Karen Traviss , and reprints of two short stories , In His Image and A Two - Edged Sword by Karen Traviss . The book takes place 35 years after Return of the Jedi . Starwars.com has posted the text from the book 's dust jacket . Betrayal is followed by the second book in the series , Bloodlines .  - The Jedi are the main protagonists in the "Star Wars" universe. They are depicted as an ancient monastic and academic meritocratic organization whose origin dates back to "25,000 BBY" ("Before Battle of Yavin"; the destruction of the first Death Star).  - Lawrence Edward Kasdan (born January 14, 1949) is an American screenwriter, director and producer. He is best known as co-writer of the films "The Empire Strikes Back", "Raiders of the Lost Ark", and "Return of the Jedi". Kasdan co-wrote the "Star Wars" sequel trilogy film "", and will co-write the series' Han Solo spin-off film.  - Richard Marquand (22 September 1937  4 September 1987) was a Welsh film director, best known for directing "Return of the Jedi". He also directed the critically acclaimed 1981 drama film "Eye of the Needle" and the 1985 thriller "Jagged Edge".  - William December "Billy Dee" Williams Jr. (born April 6, 1937) is an American actor, artist, singer, and writer. He is best known for his role as Lando Calrissian in the "Star Wars" film franchise, as well as acting in the movies "Brian's Song", "Nighthawks," "The Last Angry Man," "Carter's Army," and for playing Harvey Dent in Tim Burton's "Batman" (1989).  - Star Wars is an American epic space opera franchise, centered on a film series created by George Lucas. It depicts the adventures of various characters "a long time ago in a galaxy far, far away".  - Science fiction (often shortened to SF, sci-fi or scifi) is a genre of speculative fiction, typically dealing with imaginative concepts such as futuristic science and technology, space travel, time travel, faster than light travel, parallel universes, and extraterrestrial life. Science fiction often explores the potential consequences of scientific and other innovations, and has been called a "literature of ideas." It usually avoids the supernatural, and unlike the related genre of fantasy, historically science fiction stories were intended to have a grounding in science-based fact or theory at the time the story was created, but this connection is now limited to hard science fiction.  - THX is an American company headquartered in San Francisco, California, and founded in 1983 by George Lucas. It develops the "THX" high fidelity audio/visual reproduction standards for movie theaters, screening rooms, home theaters, computer speakers, gaming consoles, car audio systems, and video games.  - Carrie Frances Fisher (October 21, 1956  December 27, 2016) was an American actress, writer and humorist. She first became known for playing Princess Leia in the "Star Wars" film series. Her other film roles included "Shampoo" (1975), "The Blues Brothers" (1980), "Hannah and Her Sisters" (1986), "The 'Burbs" (1989), and "When Harry Met Sally..." (1989).  - A screenplay or script is a written work by screenwriters for a film, video game, or television program. These screenplays can be original works or adaptations from existing pieces of writing. In them, the movement, actions, expression, and dialogues of the characters are also narrated. A screenplay written for television is also known as a teleplay.    After reading the paragraphs above, we are interested in knowing the entity with which 'betrayal ' exhibits the relationship of 'genre'. Find the answer from the choices below.  Choices: - action  - advertising  - blues  - book  - drama  - dungeons & dragons  - epic  - fantasy  - fiction  - game  - hard science fiction  - literature  - novel  - opera  - science  - science fiction film  - science fiction novel  - screenplay  - sequel  - song  - space  - speculative fiction  - supernatural  - technology  - television  - theater  - travel  - universe  - video  - war  - welsh
A:
science fiction novel