268167
The name was recorded in 1880 by Ivan Petroff during the 10th Census , who reported 100 Tlingit still living there .
 person: Ivan Petroff
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: Ivan Petroff 
Answer:
 person: Ivan Petroff