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 Their deadly serious proposals answers to the Grand Challenges in Global Health that Mr. Gates posed in a 2003 speech in Davos , Switzerland sounded much like his spoofs : laboratories around the world , some of them led by Nobel Prize winners , proposing to invent bananas and sorghum that make their own vitamin A ; chemicals that render mosquitoes unable to smell humans ; drugs that hunt down tuberculosis germs in people who do not even know they are infected ; and vaccines that are mixed into spores or plastics or sugars and can be delivered in glasses of orange juice or modified goose calls . 
 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: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 location contains: Switzerland, Davos