Question: What kind of aircraft are the Embraer E-Jet family and the EMbraer J-Jet E2 family?

full_context: Document 1: Mitsubishi Regional Jet: The Mitsubishi Regional Jet (Japanese: 三菱リージョナルジェット ), or MRJ for short, is a twin-engine regional jet aircraft seating 70–90 passengers manufactured by Mitsubishi Aircraft Corporation, a partnership between majority owner Mitsubishi Heavy Industries and Toyota Motor Corporation with design assistance from Toyota affiliate Fuji Heavy Industries, already a manufacturer of aircraft. It will be the first airliner designed and produced in Japan since the NAMC YS-11 of the 1960s, which was produced at a loss. Its first flight was in November 2015. After a fifth delay, deliveries are scheduled to start by mid-2020.
Document 2: Bombardier CSeries: The Bombardier CSeries or C Series is a family of narrow-body, twin-engine, medium-range jet airliners by Canadian manufacturer Bombardier Aerospace.
Document 3: Boeing 737 Next Generation: The Boeing 737 Next Generation, commonly abbreviated as 737NG, is the name given to the −600/-700/-800/-900 series of the Boeing 737 airliner. It is the third generation derivative of the 737, and follows the 737 Classic (−300/-400/-500) series, which began production in the 1980s. They are short- to medium-range, narrow-body jet airliners. Produced since 1996 by Boeing Commercial Airplanes, the 737NG series includes four variants and can seat between 110 and 210 passengers.
Document 4: Embraer ERJ 145 family: The Embraer ERJ145 family is a series of twin-engine regional jets produced by Embraer, a Brazilian aerospace company. Aircraft in the series include the ERJ135 (37 passengers), ERJ140 (44 passengers), and ERJ145 (50 passengers), as well as the Legacy business jet and the R-99 family of military aircraft. Each jet in the series is powered by two turbofan engines. The family's primary competition comes from the Bombardier CRJ regional jets.
Document 5: Boeing 757: The Boeing 757 is a mid-size, narrow-body twin-engine jet airliner that was designed and built by Boeing Commercial Airplanes. It is the manufacturer's largest single-aisle passenger aircraft and was produced from 1981 to 2004. The twinjet has a two-crew member glass cockpit, turbofan engines of sufficient power to allow takeoffs from relatively short runways and higher altitudes, a conventional tail and, for reduced aerodynamic drag, a supercritical wing design. Intended to replace the smaller three-engine 727 on short and medium routes, the 757 can carry 200 to 295 passengers for a maximum of 3150 to , depending on variant. The 757 was designed concurrently with a wide-body twinjet, the 767, and owing to shared features pilots can obtain a common type rating that allows them to operate both aircraft.
Document 6: Embraer/FMA CBA 123 Vector: The Embraer/FMA CBA 123 Vector (originally EMB 123 for Embraer and IA 70 for FMA) was a 1990 turboprop aircraft designed for regional flights, to carry up to 19 passengers. The program arose from a partnership between the Brazilian company Embraer and the Argentine FMA. The project was an advanced turboprop aircraft for its time, including advanced technology in avionics, aerodynamics, and propulsion.
Document 7: Embraer E-Jet E2 family: The Embraer E-Jet E2 family is a family of three narrow-body medium-range twin-engine jet airliners developed by Brazilian aerospace company Embraer, replacing the predecessor Embraer E-Jet family. The three variants share the same fuselage cross sections with different lengths and three different new wings, Pratt & Whitney PW1000G geared turbofans in two sizes, fly-by-wire controls with new avionics, and an updated cabin with 40% enlarged baggage bins. Announced improvements per seat are 16 to 24% lower fuel burn and 15–25% lower maintenance cost.
Document 8: Boeing 777: The Boeing 777 is a family of long-range wide-body twin-engine jet airliners developed and manufactured by Boeing Commercial Airplanes. It is the world's largest twinjet and has a typical seating capacity of 314 to 396 passengers, with a range of 5240 to . Commonly referred to as the "Triple Seven", its distinguishing features include the largest-diameter turbofan engines of any aircraft, six wheels on each main landing gear, fully circular fuselage cross-section, and a blade-shaped tail cone. Developed in consultation with eight major airlines, the 777 was designed to replace older wide-body airliners and bridge the capacity difference between Boeing's 767 and 747. As Boeing's first fly-by-wire airliner, it has computer-mediated controls. It was also the first commercial aircraft to be designed entirely with computer-aided design.
Document 9: Indústria Aeronáutica Neiva: Indústria Aeronáutica Neiva is a subsidiary of Embraer which produces airplanes and aircraft components. Its main product is the Embraer EMB 202 Ipanema, the most employed agricultural aircraft in Brazil and the first alcohol-powered airplane. Neiva delivered more than 3,700 aircraft until early 2006.
Document 10: Competition in the Regional jet market: Competition in the Regional jet market, contrary to the duopoly between Boeing and Airbus in the large jet airliner market, has several players from several countries and continents. This last decade, a fierce battle among well-established companies, Embraer E-Jet family and Bombardier CRJ700 series (the big two players), and emerging ones, Mitsubishi Regional Jet, Sukhoi Superjet 100, Comac ARJ21 and Antonov An-148 among them, has arisen in this lucrative billion dollar market.
Document 11: Airbus A350 XWB: The Airbus A350 XWB is a family of long-range, twin-engine wide-body jet airliners developed by European aircraft manufacturer Airbus. The A350 is the first Airbus aircraft with both fuselage and wing structures made primarily of carbon-fibre-reinforced polymer. Its variants seat 280 to 366 passengers in typical three-class seating layouts. The A350 is positioned to succeed the A340, and compete with the Boeing 787 and 777.
Document 12: Embraer E-Jet family: The Embraer E-Jet family is a series of narrow-body medium-range twin-engine jet airliners, carrying 80 to 124 passengers commercially, manufactured by Brazilian aerospace conglomerate Embraer. Launched at the Paris Air Show in 1999, and entering production in 2002, the aircraft series has been a commercial success primarily for its safety and efficiency. The aircraft is used by mainline and regional airlines around the world. s of 30 2015 , there is a backlog of 263 firm orders for the E-Jets, 433 options and 1158 units delivered.
Document 13: Embraer EMB 202 Ipanema: The Embraer EMB 202 Ipanema is a Brazilian agricultural aircraft used for aerial application, particularly crop dusting. It is produced by Indústria Aeronáutica Neiva, a subsidiary of Embraer located in Botucatu, Brazil. The latest version of this aircraft is the first ethanol-powered fixed-wing aircraft, which could give it an economical advantage over the gasoline version. The aircraft is widely employed in Brazil, having market share of about 80%, and the 1,000th delivery was completed on 15 March 2005. Besides aircraft, alcohol-conversion kits for gasoline-powered Ipanemas are also sold.
Document 14: Tupolev Tu-204: The Tupolev Tu-204 is a twin-engined medium-range jet airliner capable of carrying 210 passengers, designed by Tupolev and produced by Aviastar SP and Kazan Aircraft Production Association. First introduced in 1989, it is intended to be broadly equivalent to the Boeing 757, with slightly lower range and payload, and has competitive performance and fuel efficiency in its class. It was developed for Aeroflot as a replacement for the medium-range Tupolev Tu-154 trijet. The latest version, with significant upgrades and improvements, is the Tu-204SM, which made its maiden flight on 29 December 2010.
Document 15: Boeing 737: The Boeing 737 is a short- to medium-range twinjet narrow-body airliner developed and manufactured by Boeing Commercial Airplanes in the United States. Originally developed as a shorter, lower-cost twin-engine airliner derived from the 707 and 727, the 737 has developed into a family of ten passenger models with capacities from 85 to 215 passengers. The 737 is Boeing's only narrow-body airliner in production, with the 737 Next Generation (-700, -800, and -900ER) and the re-engined and redesigned 737 MAX variants currently being built.
ground_truth: narrow-body medium-range twin-engine jet airliners