21551
For the study , scientists from the University of Minnesota , the University of Bamako in Mali , the Fred Hutchinson Cancer Research Center in Seattle and Princeton University collected wild anopheles gambiae mosquitoes , the species most likely to spread malaria in Africa , in villages in Mali .
 location contains: Africa, Mali
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, Mali 
Answer:
 location contains: Africa, Mali