Question: What novel won a Nebula award and is the basis for a movie directed by Alex Garland?

Context paragraphs:
Jo Walton: Jo Walton (born December 1, 1964) is a Welsh-Canadian fantasy and science fiction writer and poet.  She won the John W. Campbell Award for Best New Writer in 2002 and the World Fantasy award for her novel "Tooth and Claw" in 2004.  Her novel "Ha'penny" was a co-winner of the 2008 Prometheus Award.  Her novel "Lifelode" won the 2010 Mythopoeic Award.  Her novel "Among Others" won the 2011 Nebula Award for Best Novel, and the 2012 Hugo Award for Best Novel, and is one of only seven novels to have been nominated for the Hugo Award, Nebula Award, and World Fantasy Award.

Annihilation (VanderMeer novel): Annihilation is a 2014 novel by Jeff VanderMeer.  It is the first in a series of three books called the "Southern Reach Trilogy".  The book describes a team of four women (a biologist, an anthropologist, a psychologist, and a surveyor) who set out into an area known as Area X.  The area is abandoned and cut off from the rest of civilization.  They are the 12th expedition.  The other expeditions have been fraught with disappearances, suicides, aggressive cancers, and mental trauma.  The novel won the 2015 Nebula Award for Best Novel and the 2014 Shirley Jackson Award for best novel.

Annihilation (film): Annihilation is an upcoming British-American science fiction thriller film directed and written by Alex Garland based on the book of the same name by Jeff VanderMeer.

Nebula Award for Best Novella: The Nebula Award for Best Novella is given each year by the Science Fiction and Fantasy Writers of America (SFWA) for science fiction or fantasy novellas.  A work of fiction is defined by the organization as a novella if it is between 17,500 and 40,000 words; awards are also given out for pieces of longer lengths in the novel category, and for shorter lengths in the short story and novelette categories.  To be eligible for Nebula Award consideration a novella must be published in English in the United States.  Works published in English elsewhere in the world are also eligible provided they are released on either a website or in an electronic edition.  The Nebula Award for Best Novella has been awarded annually since 1966.  Novellas published by themselves are eligible for the novel award instead if the author requests them to be considered as such.  The award has been described as one of "the most important of the American science fiction awards" and "the science-fiction and fantasy equivalent" of the Emmy Awards.

Nebula Award for Best Novel: The Nebula Award for Best Novel is given each year by the Science Fiction and Fantasy Writers of America (SFWA) for science fiction or fantasy novels.  A work of fiction is defined by the organization as a novel if it is 40,000 words or longer; awards are also given out for pieces of shorter lengths in the categories of short story, novelette, and novella.  To be eligible for Nebula Award consideration a novel must be published in English in the United States.  Works published in English elsewhere in the world are also eligible provided they are released on either a website or in an electronic edition.  The Nebula Award for Best Novel has been awarded annually since 1966.  Novels which were expanded forms of previously published short stories are eligible, as are novellas published by themselves if the author requests them to be considered as a novel.  The award has been described as one of "the most important of the American science fiction awards" and "the science-fiction and fantasy equivalent" of the Emmy Awards.

Nebula Award for Best Short Story: The Nebula Award for Best Short Story is given each year by the Science Fiction and Fantasy Writers of America (SFWA) for science fiction or fantasy short stories.  A work of fiction is defined by the organization as a short story if it is less than 7,500 words; awards are also given out for longer works in the categories of novel, novella, and novelette.  To be eligible for Nebula Award consideration a short story must be published in English in the United States.  Works published in English elsewhere in the world are also eligible provided they are released on either a website or in an electronic edition.  The Nebula Award for Best Short Story has been awarded annually since 1966.  The award has been described as one of "the most important of the American science fiction awards" and "the science-fiction and fantasy equivalent" of the Emmy Awards.

Lois McMaster Bujold: Lois McMaster Bujold ( ; born November 2, 1949) is an American speculative fiction writer.  She is one of the most acclaimed writers in her field, having won the Hugo Award for best novel four times, matching Robert A. Heinlein's record, not counting his Retro Hugo.  Her novella "The Mountains of Mourning" won both the Hugo Award and Nebula Award.  In the fantasy genre, "The Curse of Chalion" won the Mythopoeic Award for Adult Literature and was nominated for the 2002 World Fantasy Award for best novel, and both her fourth Hugo Award and second Nebula Award were for "Paladin of Souls".  In 2011 she was awarded the Skylark Award.  In 2013 she was awarded the Forry Award.  In 2017 she won a Hugo Award for Best Series, for the Vorkosigan Saga.

Saladin Ahmed: Saladin Ahmed (born October 4, 1975) is an American science fiction and fantasy writer and poet.  His 2012 book "Throne of the Crescent Moon" was nominated for the Hugo Award for Best Novel and won the Locus Award for Best First Novel.  He has also been a finalist for the John W. Campbell Award, the Nebula Award for Best Novel and the Nebula Award for Best Short Story.  Ahmed's fiction has been published in anthologies and magazines including Strange Horizons, Orson Scott Card's InterGalactic Medicine Show, "Clockwork Phoenix 2" and Beneath Ceaseless Skies.  He is also the author of the "Black Bolt" series from Marvel Comics.

Nebula Award for Best Script: The Nebula Award for Best Script was given each year by the Science Fiction and Fantasy Writers of America (SFWA) for science fiction or fantasy scripts for movies or television episodes.  Awards are also given out for published literary works in the novel, novella, novelette, and short story categories.  The Nebula Award for Best Script was awarded annually from 1974 through 1978, and from 2000 through 2009.  It was presented under several names; in 1974, 1975, and 1977 the award was for Best Dramatic Presentation, while in 1976 the award was for Best Dramatic Writing.  The award was discontinued in 2010 and replaced with The Ray Bradbury Award for Outstanding Dramatic Presentation; this award, though not a Nebula, is presented at the Nebula Awards Ceremony and follows Nebula rules and procedures.  The Nebula Awards have been described as one of "the most important of the American science fiction awards" and "the science-fiction and fantasy equivalent" of the Emmy Awards.

Nebula Award for Best Novelette: The Nebula Award for Best Novelette is given each year by the Science Fiction and Fantasy Writers of America (SFWA) to a science fiction or fantasy novelette.  A work of fiction is defined by the organization as a novelette if it is between 7,500 and 17,500 words; awards are also given out for pieces of longer lengths in the Novel and Novella categories, and for shorter lengths in the Short Story category.  To be eligible for Nebula Award consideration a novelette must be published in English in the United States.  Works published in English elsewhere in the world are also eligible provided they are released on either a website or in an electronic edition.  The Nebula Award for Best Novelette has been awarded annually since 1966.  The Nebula Awards have been described as one of "the most important of the American science fiction awards" and "the science-fiction and fantasy equivalent" of the Emmy Awards.

Supporting paragraphs: Annihilation (film) Annihilation (VanderMeer novel)
Answer: Annihilation