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Americans remembered the British invasion of the United States by sea during the War of 1812 and to avoid its recurrence President John Tyler and Secretary of the  Navy   Abel P. Upshur  called for a large increase in the size of the U.S. Navy in order to defend the coast .
 employee of: Navy, Abel P. Upshur
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, Abel P. Upshur