Question: Skagboys is a 2012 novel by Scottish writer Irvine Welsh, it is a prequel to his 2002 sequel, which novel published in 2002 by Scottish writer Irvine Welsh, and is the sequel to "Trainspotting"?

full_context: Document 1: Trainspotting (novel): Trainspotting is the first novel by Scottish writer Irvine Welsh, first released in 1993. It takes the form of a collection of short stories, written in either Scots, Scottish English or British English, revolving around various residents of Leith, Edinburgh who either use heroin, are friends of the core group of heroin users, or engage in destructive activities that are implicitly portrayed as addictions that serve the same function as heroin addiction. The novel is set in the late 1980s and has been called "the voice of punk, grown up, grown wiser and grown eloquent".
Document 2: A Decent Ride: A Decent Ride is a 2015 novel by Irvine Welsh. Welsh returns to his character Terry Lawson, first introduced in "Glue", this book taking place a further 10 years after the events of "Porno" during the 2011 Scottish Hurricane Bawbag. The book's title is a double-entendre on Lawson's sexual prowess, and his job in this novel as a taxi driver.
Document 3: The Bedroom Secrets of the Master Chefs: The Bedroom Secrets of the Master Chefs is the sixth novel by Scottish writer Irvine Welsh.
Document 4: The Sex Lives of Siamese Twins: The Sex Lives of Siamese Twins is the ninth novel by Scottish writer Irvine Welsh, published in May 2014.
Document 5: Crime (novel): Crime is a 2008 novel by Scottish writer Irvine Welsh. It is the sequel to his earlier novel, "Filth".
Document 6: Trainspotting (soundtrack): The "Trainspotting" soundtracks are two soundtrack albums released following the film adaptation of Irvine Welsh's novel of the same name. The first was released on July 9, 1996. The comparatively huge fanbase for both the film and the original soundtrack prompted a release of a second soundtrack on October 21, 1997. This second soundtrack included songs from the film that didn't make the cut for the first album, as well as songs that didn't appear in the final film, but were involved at earlier stages or were used as inspiration by the filmmakers. The popularity of the first volume led EMI to reissue and continue to press it from 16 June 2003.
Document 7: Trainspotting (film): Trainspotting is a 1996 British black comedy crime film directed by Danny Boyle, and starring Ewan McGregor, Ewen Bremner, Jonny Lee Miller, Kevin McKidd, Robert Carlyle, and Kelly Macdonald in her acting debut. Based on the novel of the same name by Irvine Welsh, the film was released in the United Kingdom on 23 February 1996.
Document 8: 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 9: John Hodge (screenwriter): John Hodge (born 1964) is a British screenwriter and dramatist, most noted for his adaptation of Irvine Welsh's novel "Trainspotting" into the script for the film of the same title. His first play "Collaborators" won the 2012 Olivier Award for Best New Play. His films include "Shallow Grave" (1994), "Trainspotting" (1996) "A Life Less Ordinary" (1997), "The Beach" (2000), "The Final Curtain" (2002), and the short film "Alien Love Triangle" (2002).
Document 10: William Boyd (writer): William Boyd, CBE (born 7 March 1952) is a Scottish novelist and screenwriter.
Document 11: Glue (novel): Glue is a 2001 novel by Scottish writer Irvine Welsh. "Glue" tells the stories of four Scottish boys over four decades, through the use of different perspectives and different voices. It addresses sex, drugs, violence, and other social issues in Scotland, mapping "the furious energies of working-class masculinity in the late 20th century, using a compulsive mixture of Lothians dialect, libertarian socialist theory, and an irresistible black humour." The title refers not to solvent abuse, but the metaphorical glue holding the four friends together through changing times.
Document 12: Skagboys: Skagboys is a 2012 novel by Scottish writer Irvine Welsh. It is a prequel to his 1993 novel "Trainspotting", and its 2002 sequel "Porno". It follows the earlier lives of characters Renton and Sick Boy as they first descend into heroin addiction.
Document 13: Filth (novel): Filth is a 1998 novel by Scottish writer Irvine Welsh. A sequel, "Crime", was published in 2008. It was adapted into a 2013 film of the same name, directed by Jon S. Baird with James McAvoy in the lead role.
Document 14: Porno (novel): Porno is a novel published in 2002 by Scottish writer Irvine Welsh, and is the sequel to "Trainspotting".
Document 15: T2 Trainspotting: T2 Trainspotting is a 2017 British crime comedy drama film, set in and around Edinburgh, Scotland. The film is directed by Danny Boyle and written by John Hodge, based on characters created by Irvine Welsh in his novel "Trainspotting" and its follow-up "Porno". "T2" was released in the United Kingdom on 27 January 2017 and worldwide throughout February and March 2017.
ground_truth: Porno