962
US Airways  Group operate US Airways along with its subsidiaries PSA Airlines Inc. and  Piedmont Airlines  Inc. which are wholly owned but marketed under the branding of US Airways Express .
 subsidiaries: US Airways, Piedmont Airlines
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:
 subsidiaries: US Airways, Piedmont Airlines