8080
( Other reports though ( History of  Liberia  and  Joseph Jenkins Roberts  ) say : The slave trade from Liberian ports was ended by the British Navy in the 1850s . ) .
 countries of residence: Liberia, Joseph Jenkins Roberts
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
 Entity Pairs:  Liberia, Joseph Jenkins Roberts 
Answer:
 countries of residence: Liberia, Joseph Jenkins Roberts