206617
At the time the stratigraphy at Troy had not been solidified , which was done subsequently by the archaeologist Carl Blegen .
 location: Troy; person: Carl Blegen
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: Troy, Carl Blegen 
Answer:
 location: Troy; person: Carl Blegen