Question: Are both Protected and Night Mail documentaries?

full_context: Document 1: Ten Canoes: Ten Canoes is a 2006 Australian period drama film directed by Rolf de Heer and Peter Djigirr and starring Crusoe Kurddal. The title of the film arose from discussions between de Heer and David Gulpilil about a photograph of ten canoeists poling across the Arafura Swamp, taken by anthropologist Donald Thomson in 1936. It is the first ever movie entirely filmed in Australian Aboriginal languages.
Document 2: Listen to Britain: Listen to Britain is a 1942 British propaganda short film by Humphrey Jennings and Stewart McAllister. The film was produced during World War II by the Crown Film Unit, an organisation within the British Government's Ministry of Information to support the Allied war effort. The film was nominated for the inaugural Academy Award for Documentary Feature in 1943, but lost against four other Allied propaganda films. It is noted for its nonlinear structure and its use of sound.
Document 3: Powell and Pressburger: The British film-making partnership of Michael Powell (1905–1990) and Emeric Pressburger (1902–1988)—together often known as The Archers, the name of their production company—made a series of influential films in the 1940s and 1950s. —24 films between 1939 and 1972—were mainly derived from original stories by Pressburger with the script written by both Pressburger & Powell. Powell did most of the directing while Pressburger did most of the work of the producer and also assisted with the editing, especially the way the music was used. Unusually, the pair shared a writer-director-producer credit for most of their films. The best known of these are "The Life and Death of Colonel Blimp" (1943), "A Canterbury Tale" (1944), "A Matter of Life and Death" (1946), "Black Narcissus" (1947), "The Red Shoes" (1948), and "The Tales of Hoffmann" (1951).
Document 4: My Lai (film): My Lai is a documentary film created by PBS; it aired as an episode of" American Experience." The documentary details the 1968 My Lai Massacre and its background. Topics of the video include the men of Charlie Company and the cover-up of the event. Hugh Thompson, Jr. (the rescue helicopter pilot who confronted the ground forces personally, reported the killings, and helped halt the massacre) is also covered in the documentary.
Document 5: Protected (film): Protected is a 1975 documentary film, narrated by Don Brady and Sydney born producer Robert Hughes. The film was directed by Alessandro Cavadini. It was an exposé of the ill-treatment of Aboriginal workers by white men. The details of what life was like for Aboriginal Australians on Palm Island became more widely known when Alessandro Cavadini and Carolyn Strachan recreated the strike in 1957 by hundreds of the Island’s residents even though there was huge resistance from local authorities.
Document 6: Night Mail: Night Mail is a 1936 documentary film about a London, Midland and Scottish Railway (LMS) mail train from London to Scotland, produced by the GPO Film Unit. The film ends with a "verse commentary" by W. H. Auden, written for existing footage. Benjamin Britten scored the film. The film was directed by Harry Watt and Basil Wright, and narrated by John Grierson and Stuart Legg. The Brazilian filmmaker Alberto Cavalcanti was sound director. The locomotive featured in the film was Royal Scot 6115 "Scots Guardsman", built in 1927. The film has become a classic of its own kind, much imitated by adverts and modern film shorts. "Night Mail" is widely considered a masterpiece of the British Documentary Film Movement.
Document 7: Inside Burma: Land of Fear: Inside Burma: Land of Fear is a 1996 Central Independent Television documentary, written and presented by John Pilger, which was directed by David Munro. The two men worked undercover in order to investigate the use of slave labour in Burma.
Document 8: John Betjeman Goes by Train: John Betjeman Goes By Train is a 1962 short documentary film made by British Transport Films and BBC East Anglia. The 10-minute-long film features future poet laureate John Betjeman as he takes a memorable journey by train from King's Lynn railway station to Hunstanton railway station in Norfolk, pointing out various sights and stopping off at Wolferton station on the Sandringham Estate and Snettisham station, where he extolls the virtues of rural branchline stations. An early example of a Betjeman travelogue film, a similar idea was later used for his 1973 documentary "Metro-land".
Document 9: The Palestinian: The Palestinian is a 66-minute TV documentary from 1977. It was produced by and starred Vanessa Redgrave, and directed by Roy Battersby.
Document 10: A Letter from Ulster: A Letter from Ulster is a 1942 documentary by Ulster-born movie director Brian Desmond Hurst who, along with his lifelong friend Terence Young (scriptwriter) and fellow Ulsterman and Assistant Director William (Bill) MacQuitty, created this film promoting a sense of community between the people of Northern Ireland and over one hundred thousand troops from the US based in Northern Ireland at the time. Hurst went on to become one of Northern Ireland's most prominent film director and Young went on to direct the early Bond movies "Dr. No", "From Russia With Love" and "Thunderball". William MacQuitty went on to direct the "Titanic" film "A Night to Remember".
Document 11: Night Mail (1935 film): Night Mail is a 1935 British film. It is not to be confused with the 1936 documentary "Night Mail".
Document 12: Niillas Somby: In 1999, a documentary film directed by Paul-Anders Simma was produced called "Give Us Our Skeletons" which describe Niillas' quest to retrieved the head of his ancestor Mons Somby and Aslak Hætta from the University of Oslo in Norway.
Document 13: Target for Tonight: Target for Tonight is a 1941 British documentary film billed as filmed and acted by the Royal Air Force, all while under fire. It was directed by Harry Watt. The film is about the crew of a Wellington bomber partaking in a mission over Germany. The film won an honorary Academy Award in 1942 as 'Best Documentary' by the National Board of Review.
Document 14: We Shall Remain: We Shall Remain is a five-part, 7.5-hour documentary series about the history of Native Americans spanning the 17th century to the 20th century. It was a collaborative effort with several different directors, writers and producers working on each episode, including directors Chris Eyre, Ric Burns and Stanley Nelson Jr. Actor Benjamin Bratt narrated the entire series. It is part of the American Experience series and premiered April 13, 2009.
Document 15: John Grierson: John Grierson CBE (26 April 1898 – 19 February 1972) was a pioneering Scottish documentary maker, often considered the father of British and Canadian documentary film. In 1926, Grierson coined the term "documentary" in a review of Robert Flaherty's "Moana".
ground_truth: yes