Question: What is the year of the event that occured first, The Trials of Life was transmitted, or The Five Obstructions was produced?

full_context: Document 1: The Life of Birds: The Life of Birds is a BBC nature documentary series written and presented by David Attenborough, first transmitted in the United Kingdom from 21 October 1998.
Document 2: Ron Fricke: Ron Fricke is a North American film director and cinematographer, specializing in time-lapse photography and large format cinematography. He was the director of photography for "Koyaanisqatsi" (1982) and directed the purely cinematic non-verbal non-narrative feature "Baraka" (1992). He designed and used his own 65
Document 3: The Five Obstructions: The Five Obstructions is a 2003 Danish documentary film directed by Lars von Trier and Jørgen Leth. The film is conceived as a documentary, but incorporates lengthy sections of experimental films produced by the filmmakers. The premise is that von Trier has created a challenge for his friend and mentor, Jørgen Leth, another renowned filmmaker. von Trier's favorite film is Leth's "The Perfect Human" (1967), and von Trier gives Leth the task of remaking "The Perfect Human" five times, each time with a different "obstruction" (or obstacle) imposed by von Trier.
Document 4: Nice Guys Finish First: Nice Guys Finish First (BBC "Horizon" television series) is a 1986 documentary by Richard Dawkins which discusses selfishness and cooperation, arguing that evolution often favors co-operative behaviour, and focusing especially on the tit for tat strategy of the prisoner's dilemma game. The film is approximately 45 minutes long and was produced by Jeremy Taylor.
Document 5: Life in the Freezer: Life in the Freezer is a BBC nature documentary series written and presented by David Attenborough, first transmitted in the United Kingdom from 18 November 1993.
Document 6: Thomas Vinterberg: Thomas Vinterberg (born 19 May 1969) is a Danish film director who, along with Lars von Trier, co-founded the Dogme 95 movement in filmmaking, which established rules for simplifying movie production. He is best known for the films "The Celebration" (1998), "Submarino" (2010), "The Hunt" (2012) and "Far from the Madding Crowd" (2015).
Document 7: Truly Human: Truly Human (Danish: Et rigtigt menneske ), certified as "Dogme #18", is a 2001 Danish drama film written and directed by Åke Sandgren, and starring Nikolaj Lie Kaas, Peter Mygind, and . Produced by Lars von Trier's and Peter Aalbæk Jensen's company Zentropa, the film was created following the Dogme 95 rules, and is experimental in style and narrative.
Document 8: The Idiots: The Idiots (Danish: Idioterne ) is a 1998 Danish comedy-drama film written and directed by Lars von Trier. It is his first film made in compliance with the Dogme 95 Manifesto, and is also known as Dogme #2. It is the second film in von Trier's "Golden Heart Trilogy", preceded by "Breaking the Waves" (1996) and succeeded by "Dancer in the Dark" (2000). It is among the first films to be shot entirely with digital cameras.
Document 9: Dogme 95: Dogme 95 was a filmmaking movement started in 1995 by the Danish directors Lars von Trier and Thomas Vinterberg, who created the "Dogme 95 Manifesto" and the "Vows of Chastity" (Danish: "kyskhedsløfter" ). These were rules to create filmmaking based on the traditional values of story, acting, and theme, and excluding the use of elaborate special effects or technology. It was an attempt to take back power for the director as artist, as opposed to the studio. They were later joined by fellow Danish directors Kristian Levring and Søren Kragh-Jacobsen, forming the Dogme 95 Collective or the Dogme Brethren. "Dogme" (] ) is the Danish word for dogma.
Document 10: Life in the Undergrowth: Life in the Undergrowth is a BBC nature documentary series written and presented by David Attenborough, first transmitted in the UK from 23 November 2005.
Document 11: The People vs. George Lucas: The People vs. George Lucas is a 2010 documentary comedy film directed by Swiss director Alexandre O. Philippe. It explores the issues of filmmaking and fanaticism pertaining to the "Star Wars" franchise and its creator, George Lucas. The film combines filmmaker and celebrity interviews with fan films, mainly taken from the 2010 online video "Star Wars Uncut", which were submitted via the film's site.
Document 12: The Trials of Life: The Trials of Life: A Natural History of Behaviour is a BBC nature documentary series written and presented by David Attenborough, first transmitted in the United Kingdom from 3 October 1990.
Document 13: Koker trilogy: The Koker trilogy is a series of three films directed by acclaimed Iranian filmmaker Abbas Kiarostami: "Where Is the Friend's Home?" (1987), "And Life Goes On" (a.k.a. "Life and Nothing More", 1992) and "Through the Olive Trees" (1994). The designation was made by film theorists and critics, rather than by Kiarostami himself, who resists the designation and notes that the films are connected only by the accident of place (referring to the fact that Koker is the name of a northern Iranian village). He has suggested that it might be more appropriate to consider the latter two titles plus "Taste of Cherry" (1997) as a trilogy, since these are connected by the theme of life's preciousness.
Document 14: Great Migrations: Great Migrations is a seven-episode nature documentary television miniseries that airs on the National Geographic Channel, featuring the great migrations of animals around the globe. The seven-part show is the largest programming event in the ten-year history of the channel and is part of the largest cross-platform initiative since the founding of the National Geographic Society. It was filmed in HD, and premiered on November 7, 2010 with accompanying coverage in the "National Geographic" magazine and an official companion book.
Document 15: Ben Salisbury: Notable television credits include the BAFTA nominated David Attenborough series "The Life of Mammals" and "Life in the Undergrowth", and the BAFTA-winning series "Life in Cold Blood". He was nominated for an Emmy Award for his score for the Wildlife on One film "Operation Dung Beetle"
ground_truth: 1990