15832
When General Buell was relieved of command in October 1862 Morton would become chief of engineers of the  Army of the Cumberland  under General  William S. Rosecrans  .
 top members employees: Army of the Cumberland, William S. Rosecrans
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Army of the Cumberland, William S. Rosecrans 
Answer:
 top members employees: Army of the Cumberland, William S. Rosecrans