Information: - The River Liffey (Irish: "An Life") is a river in Ireland, which flows through the centre of Dublin. Its major tributaries include the River Dodder, the River Poddle and the River Camac. The river supplies much of Dublin's water and a range of recreational opportunities. - Giovanni Trapattoni (born 17 March 1939), sometimes popularly known as "Trap" or "Il Trap", is an Italian football manager and former footballer, considered the most successful club coach in the history of Serie A. A former defensive midfielder, as a player he spent almost his entire club career with A.C. Milan, where he won two Serie A league titles (196162 and 196768), and two European Cups, in 196263 and 196869. Internationally, he played for Italy, earning 17 caps and participating in the 1962 FIFA World Cup in Chile. - Noel King ( born 13 September 1956 in Dublin ) is a former footballer and the current Republic of Ireland Under 21 manager , having been appointed on 19 July 2010 . He was appointed interim senior manager on 23 September 2013 following the resignation of Giovanni Trapattoni . - Dublin is the capital and largest city of Ireland. Dublin is in the province of Leinster on Ireland's east coast, at the mouth of the River Liffey. The city has an urban area population of 1,345,402. The population of the Greater Dublin Area, , was 1,904,806 people. What is the relationship between 'noel king' and 'midfielder'?
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position played on team / speciality