Problem: Given the question: Information: - Luigi Comencini (8 June 1916 6 April 2007) was an Italian film director. Together with Dino Risi, Ettore Scola and Mario Monicelli, he was considered among the masters of the "commedia all'italiana" genre. - The 32nd Cannes Film Festival was held on May 10 - 24. The Palme d'Or went to the "Apocalypse Now" by Francis Ford Coppola and "Die Blechtrommel" by Volker Schlondorff. - Francis Ford Coppola (born April 7, 1939) is a semi-retired American film director, producer, and screenwriter. He is considered to have been a central figure of the New Hollywood wave of filmmaking. - Apocalypse Now is a 1979 American epic war film directed, produced and co-written by Francis Ford Coppola and co-written by John Milius with narration by Michael Herr. It stars Marlon Brando, Robert Duvall, Martin Sheen, Frederic Forrest, Albert Hall, Sam Bottoms, Larry Fishburne, and Dennis Hopper. The screenplay written by Milius updates the setting of Joseph Conrad's novella "Heart of Darkness" to that of the Vietnam War. It draws from Herr's "Dispatches", and Werner Herzog's "Aguirre, the Wrath of God" (1972). The film revolves around Captain Benjamin L. Willard (Sheen) on a secret mission to assassinate Colonel Kurtz, a renegade who's presumed insane. - Dino Risi (23 December 1916 7 June 2008) was an Italian film director. With Mario Monicelli, Luigi Comencini, Nanni Loy and Ettore Scola, he was one of the masters of "Commedia all'italiana". He was born in Milan. - Mario Monicelli (16 May 1915 29 November 2010) was a six times-Oscar nominated Italian director and screenwriter and one of the masters of the "Commedia all'Italiana" (Comedy Italian style). - Volker Schlondorff (born 31 March 1939) is a Berlin-based German filmmaker who has worked in Germany, France and the United States. He was a prominent member of the New German Cinema of the late 1960s and early 1970s, which also included Werner Herzog, Wim Wenders, Margarethe von Trotta and Rainer Werner Fassbinder. - Commedia all'italiana (i.e. "Comedy in the Italian way") or Italian-style comedy is an Italian film genre. It is widely considered to have started with Mario Monicelli's "I soliti ignoti" ("Big Deal on Madonna Street") in 1958 and derives its name from the title of Pietro Germi's "Divorzio all'italiana" ("Divorce Italian Style", 1961). - The Cannes Festival (French: Festival de Cannes), named until 2002 as the International Film Festival ("Festival international du film") and known in English as the Cannes Film Festival, is an annual film festival held in Cannes, France, which previews new films of all genres, including documentaries, from all around the world. Founded in 1946, the invitation-only festival is held annually (usually in May) at the Palais des Festivals et des Congres. - Traffic Jam ( Italian : L'ingorgo - Una storia impossibile ) is a 1979 Italian satirical comedy - drama film directed by Luigi Comencini . It was entered into the 1979 Cannes Film Festival . - Ettore Scola (10 May 1931 19 January 2016) was an Italian screenwriter and film director. He received a Golden Globe for Best Foreign Film in 1978 for his film "A Special Day" and over the course of his film career was nominated for five Academy Awards. - The Palme d'Or is the highest prize awarded at the Cannes Film Festival. It was introduced in 1955 by the organising committee. From 1939 to 1954, the highest prize was the "Grand Prix du Festival International du Film". Given the paragraphs above, decide what entity has the relation 'publication date' with '1978'.
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The answer is:
traffic jam

Problem: Given the question: Information: - CRRC Corporation Limited is a Chinese publicly traded rolling stock manufacturer, formed on 1 June 2015 with the merger of China CNR Corporation and CSR Corporation Limited. - Changchun Railway Vehicles Company Ltd. () is a Chinese rolling stock manufacturer under CRRC Corporation. While the CRV emerged in 2002, the company's roots date back to the establishment of the Changchun Car Company in 1954. - The farebox recovery ratio (also called fare recovery ratio) of a passenger transportation system is the fraction of operating expenses which are met by the fares paid by passengers. It is computed by dividing the system's total fare revenue by its total operating expenses. - The Mass Transit Railway (MTR) is the rapid transit railway system of Hong Kong. Opened in 1979, the system now includes of rail with 161 stations, including 93 railway stations and 68 light rail stops. Operated by the MTR Corporation Limited (MTRCL), the MTR is one of the most profitable metro systems in the world, with a high farebox recovery ratio of 186%. - Rapid transit, also known as heavy rail, metro, subway, tube, or underground, is a type of high-capacity public transport generally found in urban areas. Unlike buses or trams, rapid transit systems are electric railways that operate on an exclusive right-of-way, which cannot be accessed by pedestrians or other vehicles of any sort, and which is often grade separated in tunnels or on elevated railways. - The MTR CNR EMU ( also known as C - Train by MTR officially announced ) is a train for the Mass Transit Railway ( MTR ) in Hong Kong . It is manufactured by Changchun Railway Vehicles , a member of CNR group . The trains were the first China - made heavy - rail stock in the territory , while past orders came from England , Japan , Europe or South Korea . As of December 6 , 2010 , the first trainset has rolled off of production lines at CNR 's plant . The first train was transported to Hong Kong on April 28 , 2011 . As of October 16 , 2011 , 4 sets have arrived and are undergoing testing on the Kwun Tong Line , where they will first enter service sometime in November of the same year . On July 22 , 2011 , MTR placed an additional order for 12 eight - car trains to supply the West Island Line extension and 10 three car trains for the first phase of the South Island Line . The first trainset entered service on the Kwun Tong Line on Wednesday evening , December 7 , 2011 . On May 29 , 2012 , the first trainset entered service on the Tsuen Wan Line at 21:54 . On May 13 , 2013 , the first trainset , A363 - A364 , entered service on the Tseung Kwan O Line . The last 8 car train , A393 - A394 , was handed over on September 5 , 2013 , and entered service on the Kwun Tong Line shortly after . - Hong Kong, officially the Hong Kong Special Administrative Region of the People's Republic of China, is an autonomous territory on the Pearl River Delta of East Asia. Macau lies across the delta to the west, and the Chinese province of Guangdong borders the territory to the north. With a total land area of and a population of over 7.3 million of various nationalities, it ranks as the world's fourth most densely populated sovereign state or territory. Given the paragraphs above, decide what entity has the relation 'instance of' with 'rolling stock'.
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The answer is:
mtr cnr changchun emu