Question: What television network hosted the show in which Matt Ryan played the character John Constantine?

full_context: Document 1: Matt Smith (actor): Matthew Robert Smith (born 28 October 1982) is an English actor and voice actor. He is best known for his role as the 11th incarnation of The Doctor in the BBC science fiction series "Doctor Who".
Document 2: The Constant: "The Constant" is the fifth episode of the fourth season of the American Broadcasting Company's (ABC) serial drama television series "Lost", and the 77th episode overall. It was broadcast on February 28, 2008, on ABC in the United States and on CTV in Canada. It was written by executive producer Carlton Cuse and co-creator/executive producer Damon Lindelof and directed by executive producer Jack Bender. "The Constant" was watched by 15 million American viewers and is widely regarded as one of "Lost"<nowiki>'</nowiki>s best episodes. It was nominated for three Primetime Emmy Awards, a Directors Guild of America Award, and a Hugo Award.
Document 3: Constantine (TV series): Constantine is an American television series developed by Daniel Cerone and David S. Goyer for NBC, featuring the DC Comics character John Constantine. Matt Ryan stars as Constantine, a British exorcist and occult detective who actively hunts supernatural entities. The series aired from October 24, 2014 to February 13, 2015, over 13 episodes. On May 8, 2015, NBC canceled "Constantine" after only one season due to poor ratings. Ryan reprised the role in a guest appearance in the fourth season of The CW series "Arrow", set within the Arrowverse, and it was announced in January 2017 that he would voice the character in an animated web series on The CW Seed later that year.
Document 4: Constantine (film): Constantine is a 2005 American occult detective film directed by Francis Lawrence (in his directorial debut) and starring Keanu Reeves as John Constantine. Rachel Weisz, Shia LaBeouf, Tilda Swinton, Pruitt Taylor Vince, and Djimon Hounsou co-star. With a screenplay by Kevin Brodbin and Frank Cappello, the film is based on DC Comics' "Hellblazer" comic book, with plot elements taken from the "Dangerous Habits" story arc (issues #4146) and the "Original Sins" story arc. The film portrays John Constantine as a cynic with the ability to perceive and communicate with half-angels and half-demons in their true form. He seeks salvation from eternal damnation in Hell for a suicide attempt in his youth. Constantine exorcises demons back to Hell to earn favor with Heaven but has become weary over time. With terminal lung cancer, he helps a troubled police detective learn the truth about her sister's death while simultaneously unraveling a much larger and darker plot.
Document 5: John Constantine: John Constantine ( ) is a fictional antihero, appearing in comic books published by DC Comics and its alternative imprint Vertigo. The character first appeared in "Swamp Thing" Vol. 2 No. 25 (June 1984), and was created by Alan Moore, Steve Bissette and John Totleben. He serves as the lead character of the comic books "Hellblazer" (1988–2013), "Constantine" (2013–15), "Constantine: The Hellblazer" (2015–16), and "The Hellblazer" (2016–).
Document 6: Ed Skrein: Edward George "Ed" Skrein ( ; born 29 March 1983) is an English actor and rapper. Outside his rap career, he is best known for his roles as Daario Naharis in Season 3 of "Game of Thrones", Frank Martin Jr. in "The Transporter Refueled" and Francis Freeman/Ajax in "Deadpool" (2016).
Document 7: Matt Ryan (American football): Matthew Thomas Ryan (born May 17, 1985), nicknamed "Matty Ice", is an American football quarterback for the Atlanta Falcons of the National Football League (NFL). After playing college football for Boston College, Ryan was drafted by the Falcons with the third overall pick in the first round of the 2008 NFL Draft.
Document 8: Matthew Rhys: Matthew Rhys Evans (born 8 November 1974), known professionally as Matthew Rhys, is a Welsh actor. He is best known for his Emmy-nominated role as Philip Jennings on the FX drama series "The Americans". He also starred as Kevin Walker on the ABC television drama "Brothers & Sisters", and as Dylan Thomas in "The Edge of Love".
Document 9: Hellblazer: Hellblazer (also known as John Constantine, Hellblazer) is an American contemporary horror comic book series, originally published by DC Comics, and subsequently by the Vertigo imprint since March 1993 when the imprint was introduced. Its central character is the streetwise magician John Constantine, who was created by Alan Moore and Stephen R. Bissette, and first appeared as a supporting character in "The Saga of the Swamp Thing" #37 (June 1985), during that creative team's run on that title. "Hellblazer" had been published continuously since January 1988, and was Vertigo's longest running title, the only remaining publication from the imprint's launch. In 2013, the series concluded with issue 300, and has been replaced by a DC Universe title, "Constantine". It was then relaunched in 2016 with the title "The Hellblazer" as part of "DC Universe Rebirth", restoring the character to his original cast, tone and setting. Well known for its political and social commentary, the series has spawned a film adaptation, television show, novels, and multiple spin-offs and crossovers.
Document 10: Constantine (comic book): Constantine is an ongoing comic book series published by DC Comics, which started in March 2013. It features British exorcist John Constantine re-established into the DC Universe, and replaces the former Vertigo Comics title "Hellblazer", which ended with its 300th issue after 25 years, in February 2013. The title character was originally created by Alan Moore in his 1980s run on "Swamp Thing".
Document 11: Luke Evans (actor): Luke Evans (born 15 April 1979) is a Welsh actor. Evans began his career on the stage, performing in many of London's West End productions such as "Rent", "Miss Saigon", and "Piaf" before getting his Hollywood breakthrough role starring in the "Clash of the Titans" 2010 remake. Following his debut, Evans was cast in such action and thriller films as "Immortals" (2011), "The Raven" (2012), and the re-imagined "The Three Musketeers" (2011).
Document 12: Gareth Evans (director): Gareth Huw Evans (born 1980) is a Welsh film director, screenwriter, film editor and action choreographer.
Document 13: Matt Ryan (actor): Matt Ryan (born Matthew Darren Evans; 11 April 1981) is a Welsh actor from Swansea, best known as Edward Kenway in the Ubisoft video game "" and John Constantine in the NBC series "Constantine" and The CW series "Arrow", as well as voicing the character in the 2017 film "Justice League Dark".
Document 14: Supernatural (U.S. TV series): Supernatural is an American fantasy horror television series created by Eric Kripke. It was first broadcast on September 13, 2005, on The WB, and subsequently became part of successor The CW's lineup. Starring Jared Padalecki as Sam Winchester and Jensen Ackles as Dean Winchester, the series follows the two brothers as they hunt demons, ghosts, monsters, and other supernatural beings. The series is produced by Warner Bros. Television, in association with Wonderland Sound and Vision. Along with Kripke, executive producers have been McG, Robert Singer, Phil Sgriccia, Sera Gamble, Jeremy Carver, John Shiban, Ben Edlund and Adam Glass. Former executive producer and director Kim Manners died of lung cancer during production of the fourth season.
Document 15: Chris Tally Evans: Chris Tally Evans is a British disabled artist, actor, director and writer. He trained at the Royal Welsh College of Music and Drama as a performer and graduated from Trinity College, London with a teaching diploma. Evans' interest in theatre and music started as a teenager when he joined West Glamorgan Youth Theatre and West Glamorgan Youth Arts Company as an actor, dancer and musician. He was lead guitarist for the West Glamorgan Youth Arts Company production of Leonard Bernstein's "Mass" at Swansea's Brangwyn Hall and London's Wembley Arena and was a dancer in Vaughan Williams' "Job" at a performance attended by Prince Charles and Princess Diana in 1981. In both these productions he shared the stage with Russell T Davies, writer and producer of Dr Who. By the age of 14 he was playing the guitar semi-professionally in pubs and clubs in the Swansea area, as well as for a number of theatre shows. For two years at this time he was lead guitarist in the backing band of a very young Catherine Zeta-Jones. Later Evans played in a number of bands including the electric folk band Straight From the Wood who chalked up memorable appearances at Club Ifor Bach, Cardiff, Gwyl Pontardawe Festival and the Village Pump Folk Festival in Trowbridge. Evans has had both poetry and prose published, directed many theatre productions and has performed himself in the United States, Canada, Poland and New Zealand. His film work was exhibited at the John F. Kennedy Center for the Performing Arts, Washington DC, in 2011. The Arts Council of Wales granted Evans a Major Creative Wales Award in 2009 and he performed work created at this time at the InterACT Disability Arts Festival in Auckland, New Zealand. His unlimited commission, "Turning Points", was shown in the Southbank Centre, London during the 2012 Paralympic Games and then went on to be exhibited in Doha, Qatar in 2013 as part of the Middle East’s first ever disability arts festival. He has featured in HTV’s award winning documentary, One in Six, on BBC 2W’s The Arts Show, and wrote and performed a 5-part series for BBC Radio 4 called "My Mile of the River". His March 2014 production, "21st Century Dinosaurs", with a visually impaired cast, was reviewed favourably by Sarah Finch of National Theatre Wales. He wrote, performed and made video content for National Theatre Wales/Celf o Gwmpas' Big Democracy Project which responded to the question "Are disabled people an easy target for the cuts?" in June 2015. In 2015 he was appointed a National Adviser to the Arts Council of Wales.
ground_truth: NBC