Please answer the following question: Information: - Hamburg (local pronunciation ; Low German/Low Saxon: "Hamborg" ), officially "Freie und Hansestadt Hamburg" (Free and Hanseatic City of Hamburg), is the second largest city in Germany and the eighth largest city in the European Union. It is the second smallest German state by area. Its population is over 1.7 million people, and the wider Hamburg Metropolitan Region covers more than 5.1 million inhabitants. The city is situated on the river Elbe. - A head of state (or chief of state) is the public persona that officially represents the national unity and legitimacy of a sovereign state. In developing the current Constitution of France (1958), former French president Charles de Gaulle said the head of state should embody "the spirit of the nation" (""). In some countries, typically those with parliamentary governments, the head of state is a ceremonial figurehead that does not actually guide day-to-day government activities and may not even be empowered to exercise any kind of political authority (e.g., Queen Elizabeth II in the United Kingdom). In other countries, the head of state is also the head of government, such as in the U.S., where the president is both a public figurehead and the actual highest ranking political leader who, in practice, oversees the executive branch. - In the Netherlands and Belgium, the mayor (or ) is an appointed government position, whose main responsibility is chairing the executive and legislative councils of a municipality. The title is sometimes translated in English as burgomaster. - Lucien Georges Francois Philippe Cooremans ( 1 September 1899 -- 22 February 1985 ) was a Belgian liberal politician and burgomaster of Brussels . Lucien Cooremans was a lawyer , journalist and professor at the Universite Libre de Bruxelles . As a politician he was a member of parliament , alderman and burgomaster of Brussels from 1956 until 1975 . He was the leading figure of the Brussels world fair Expo ' 58 in 1958 . He was responsible for the destruction of the Maison du Peuple . - A city-state is a sovereign state that consists of a city and its dependent territories. Historically, this included cities such as Rome, Athens, Carthage, and the Italian city-states during the Renaissancebut today only a handful of sovereign city-states exist, with some disagreement as to which are city-states. A great deal of consensus exists that the term properly applies to Singapore, Monaco, and Vatican City. - Burgomaster (alternatively spelled burgomeister, literally "master of the town", "borough" or "master of the fortress") is the English form of various terms in or derived from Germanic languages for the chief magistrate or chairman of the executive council, usually of a sub-national level of administration such as a city or a similar entity. The name in English was derived from the Dutch "burgemeester". In some cases, Burgomaster was the title of the head of state and head of government of a sovereign (or partially or de facto sovereign) city-state, sometimes combined with other titles (as in Hamburg's First Mayor and President of the Senate). Contemporary titles are commonly translated into English as "mayor". Given the information, choose the subject and object entities that have the relation of 'country of citizenship'.
Answer:
lucien cooremans , belgium