8766
During the ensuing 30 minutes air combat , Karhunen and his pilots shot down nine Polikarpov I-153 s " Chaikas " .
 person: Karhunen
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:
 person: Karhunen