2498
To help protect McClellan's beleaguered army whose very existence was threatened U.S. Secretary of the  Navy   Gideon Welles  ordered a dozen of the schooners to leave the Mississippi River and to sail north to reinforce the James River Flotilla which was protecting McClellan's flanks and keeping Lee's victorious troops at bay .
 employee of: Navy, Gideon Welles
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:
 employee of: Navy, Gideon Welles