15420
Gary Marchant Executive Director Center for the Study of Law Science and Technology and Lincoln Professor of Emerging Technologies Law and Ethics Arizona State University Tempe John Quackenbush Professor Department of Biostatistics and Computational Biology Dana-Farber Institute and Professor Department of Biostatistics  Harvard School of Public Health   Boston  Kenneth S. Ramos Professor and Chair Department of Biochemistry and Molecular Biology University of Louisville Health Sciences Center and Director Center for Genetics and Molecular Medicine Louisville Ky .
 city of headquarters: Harvard School of Public Health, Boston
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:
 city of headquarters: Harvard School of Public Health, Boston