62884
In June 1986 , the Ilyushin OKB began work on a replacement for the Antonov An-24 , large numbers of which remained in service with Aeroflot .
 organization: Ilyushin; organization: OKB; vehicle: Antonov An-24; organization: Aeroflot
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: Ilyushin, OKB, Antonov An-24, Aeroflot 
Answer:
 organization: Ilyushin; organization: OKB; vehicle: Antonov An-24; organization: Aeroflot