8558
Assyria and its empire were not unduly affected by these tumultuous events for some 150 years , perhaps the only ancient power that was not , and in fact thrived for most of the period .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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