7253
BIA's Gatwick slots were required to enable fellow  Gatwick-based   Air Europe  ILG's rapidly expanding airline subsidiary to build a major scheduled presence at that airport .
 state or province of headquarters: Gatwick-based, Air Europe
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:
 state or province of headquarters: Gatwick-based, Air Europe