238406
In 1893 , after the assassination of Carter Harrison , Sr. , the mayor of Chicago , he invented the first commercial bulletproof vest .
 person: Carter Harrison , Sr.
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: Carter Harrison , Sr. 
Answer:
 person: Carter Harrison , Sr.