48704
Alexander G. Clark was an African-American diplomat who served as United States Ambassador to Liberia .
 person: Alexander; person: Clark; location: Liberia
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: Alexander, Clark, Liberia 
Answer:
 person: Alexander; person: Clark; location: Liberia