934
Marcus S. Cox a professor who teaches black military history to cadets at  The Citadel  in  Charleston  South Carolina believes generational factors are at work .
 city of headquarters: The Citadel, Charleston
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: The Citadel, Charleston