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A 1748-49 trading book for a single journey by the sloop Rhode Island shows , in conjunction with a touch-screen monitor , how food , tobacco and rum brought from New York were first exchanged in Sierra Leone for cloth , guns and European goods in demand in Africa , and then traded for slaves .
 location contains: Africa, Sierra Leone
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
 Entity Pairs:  Africa, Sierra Leone 
Answer:
 location contains: Africa, Sierra Leone