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Its captain fired a salute to the Dutch flag on Fort Oranje and Johannes de Graaff decided to answer the salute with eleven gun shots .
 person: Johannes; person: Graaff
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Johannes, Graaff 
Answer:
 person: Johannes; person: Graaff