536
He seemed to have left the defense of his kingdom to his son Belshazzar ( a capable soldier but poor diplomat who alienated the political elite ) , occupying himself with the more congenial work of excavating the foundation records of the temples and determining the dates of their builders .
 person: Belshazzar
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Belshazzar