10636
Most of the region was protected by a solitary RAF station RAF Digby near Sleaford part of  No. 12 Group RAF  and controlled from  RAF Watnall  .
 subsidiaries: No. 12 Group RAF, RAF Watnall
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: No. 12 Group RAF, RAF Watnall