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Czech President Vaclav Klaus on Monday appointed Miroslav Kostelka as the country ' s new defense minister to replace Jaroslav Tvrdik who resigned from the post in late May .
 ( start position: appointed,  Miroslav Kostelka: person, country: entity) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: declare bankruptcy, transfer ownership, transfer money, marry, transport, die, phone write, arrest jail, convict, sentence, sue, end organization, start organization, end position, start position, meet, elect, attack, injure, born, fine, release parole, charge indict, extradite, trial hearing, demonstrate, divorce, nominate, appeal, pardon, execute, acquit, merge organization, Arguments type: beneficiary, prosecutor, plaintiff, seller, victim, buyer, agent, destination, artifact, organization, recipient, person, place, origin, target, giver, adjudicator, attacker, vehicle, defendant, entity, instrument. 
Text: {0} 
Answer:
 ( start position: appointed,  Miroslav Kostelka: person, country: entity) 