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On the 18th , presidents Chen and Aleman signed a joint communique before Chen Shui - bian departed for Costa Rica , where he received the Great Cross of Juan Mora Fernandez , a gold medal which is the nation 's highest award .
 ordinal: 18th; person: Chen; person: Aleman; person: Chen Shui - bian; geographical social political: Costa Rica; work of art: the Great Cross of Juan Mora Fernandez
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 ordinal: 18th; person: Chen; person: Aleman; person: Chen Shui - bian; geographical social political: Costa Rica; work of art: the Great Cross of Juan Mora Fernandez