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The second study published in American Journal of Environmental Sciences by Chimezie Anyakora and  Herbert Coker  of the Department of Pharmaceutical Chemistry  University of Lagos  concluded that people of the Niger Delta are at a higher risk of cancer because high concentrations of this toxic chemical were found in the fishes they eat .
 top members employees: Herbert Coker, University of Lagos
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: 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} 
Answer:
 top members employees: Herbert Coker, University of Lagos