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At the same time , though , Mr. da Silva , a former lathe operator and union leader , has successfully sold himself as an ambassador for the poor who can bridge the gap between them and the world 's political and financial elite , who are gathering this week in Davos , Switzerland , for the World Economic Forum . ''
 location contains: Switzerland, Davos
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 location contains: Switzerland, Davos