Information: - PKP Group (pl: "Grupa PKP") is a Polish conglomerate founded in 2001 from the former single national rail operator, Polskie Koleje Pastwowe. The purpose of this change was to match European Union directives of dividing transport service from rail system management and founding separate companies able to sell their service outside the rail business. - EW90 is the name for German Reichsbahn ET 165 electric multiple units working for Polish State Railways ( PKP ) after World War II. - An electric multiple unit or EMU is a multiple unit train consisting of self-propelled carriages, using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number of the carriages. Most EMUs are used for passenger trains, but some have been built or converted for specialised non-passenger roles, such as carrying mail or luggage, or in departmental use, for example as de-icing trains. An EMU is usually formed of two or more semi-permanently coupled carriages, but electrically powered single-unit railcars are also generally classed as EMUs. - The European Union (EU) is a political and economic union of member states that are located primarily in Europe. It has an area of , and an estimated population of over 510 million. The EU has developed an internal single market through a standardised system of laws that apply in all member states. EU policies aim to ensure the free movement of people, goods, services, and capital within the internal market, enact legislation in justice and home affairs, and maintain common policies on trade, agriculture, fisheries, and regional development. Within the Schengen Area, passport controls have been abolished. A monetary union was established in 1999 and came into full force in 2002, and is composed of 19 EU member states which use the euro currency. - The company was founded when the former "" state-owned operator was divided into several units based on the requirements laid down by the European Union. PKP SA is the dominant company in PKP Group collective that resulted from the split, and maintains in 100% share control, being fully responsible for management of all of the other PKP Group component companies. The group's organisations are dependent upon PKP SA, but proposals for privatisation have been made. What is the relationship between 'pkp class ew90' and 'locomotive'?
Ans: subclass of

Information: - Franz Anton Beckenbauer (born 11 September 1945) is a German former professional footballer and manager. Early in his playing career he was nicknamed "Der Kaiser" ("The Emperor") because of his elegant style, dominance and leadership on the field, and also as his first name "Franz" is reminiscent of the Austrian emperors. He is widely regarded to be one of the greatest players in the history of the sport. A versatile player who started out as a midfielder, Beckenbauer made his name as a central defender. He is often credited as having invented the role of the modern sweeper or "libero". - Franco Baresi (born 8 May 1960) is an Italian football youth team coach and a former player and manager. He played as a sweeper and as a central defender, and spent his entire 20-year career with Serie A club A.C. Milan, captaining the club for 15 seasons. He is considered one of the greatest defenders of all time, and was ranked 19th in World Soccer's list of the 100 greatest players of the twentieth century. He won the Champions League 3 times, as well as 6 Serie A titles, 4 Supercoppa Italiana titles, 3 European Super Cups and 2 Intercontinental Cups. - The sweeper is a defensive position in football , so called because their job is to ' sweep up ' any attacking moves which pass other defenders . It was most commonly used by football teams in Europe until the 1990s . While the position usually has solely defensive duties , Franz Beckenbauer , one of the most famous sweepers , became famous for adding an offensive component of the ball playing defender . Other notable sweepers include Ivano Blason , Gaetano Scirea , Bobby Moore , Franco Baresi , Elias Figueroa . It is generally considered a highly specialized position . The sweeper is usually placed between the goalkeeper and the defensive line . The sweeper is sometimes also called ' libero ' from the Italian name '' battitore libero '' meaning '' free hitter '' , which describes players freedom to make clearances instead of dribbling the ball . - Robert Frederick Chelsea "Bobby" Moore OBE (12 April 1941 24 February 1993) was an English professional footballer. He captained West Ham United for more than ten years and was captain of the England team that won the 1966 World Cup. He is widely regarded as one of the greatest defenders of all time, and was cited by Pele as the greatest defender that he had ever played against. Moore is a member of the World Team of the 20th Century. - Amidfielder is an association football position. Midfielders are generally positioned on the field between their team's defenders and forwards. Some midfielders play a disciplined defensive role, breaking up attacks, and are otherwise known as defensive midfielders. Others blur the boundaries, being more mobile and efficient in passing: they are commonly referred to as deep-lying midfielders, play-makers, box-to-box, or holding midfielders. The number of midfielders on a team and their assigned roles depends on the team's formation; the collective group of these players on the field is sometimes referred to as the midfield. - Ivano Blason (24 May 1923 13 March 2002) was an Italian football player. He was a defender, who is credited with being one of the first sweepers in world football. - Gaetano Scirea (25 May 1953 3 September 1989) was an Italian professional footballer who is considered one of the greatest defenders of all-time. - The World Team of the 20th Century was chosen in 1998 to comprise, the best association football players of the 20th century CE. The team is comprised as an eleven-member side, with one goalkeeper, four defenders, three midfielders, and three forwards. - Edson Arantes do Nascimento (born 23 October 1940), known as Pele, is a retired Brazilian professional footballer who played as a forward. He is widely regarded as the greatest player of all time. Pele has also been known for connecting the phrase "The Beautiful Game" with football. In 1999, he was voted World Player of the Century by the International Federation of Football History & Statistics (IFFHS). That year, "France Football" asked their former Ballon d'Or winners to choose the Football Player of the Century; they selected Pele. In 1999, Pele was elected Athlete of the Century by the IOC. That year, "Time" named him in their list of . In 2013 he received the FIFA Ballon d'Or Prix d'Honneur in recognition of his career and achievements as a global icon of football. What is the relationship between 'sweeper ' and 'association football position'?
Ans: instance of