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Located on Naval  Submarine  Base New London ( NAVSUBASE NLON ) in Groton New  London  County Connecticut the school is a six-week introduction to the basic theory construction and operation of nuclear-powered submarines .
 cities of residence: Submarine, London
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:
 cities of residence: Submarine, London