10856
They hold their annual training camp from late July to mid-August at Ward Field on the campus of  Olivet Nazarene University  in  Bourbonnais  Illinois .
 city of headquarters: Olivet Nazarene University, Bourbonnais
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: Olivet Nazarene University, Bourbonnais