4532
His country estate has been a venue for visiting heads of state including Presidents Ronald Reagan and Bill Clinton .
 person: Ronald Reagan; person: Bill Clinton
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: Ronald Reagan, Bill Clinton 
Answer:
 person: Ronald Reagan; person: Bill Clinton