24402
As a result , 176 employees of Aon were killed when the tower collapsed at 9:59 .
 organization: Aon
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: Aon 
Answer:
 organization: Aon