11962
Other purchasers included  Boston and Maine Railroad  Bangor and Aroostook Railroad Kansas City Southern Railway Seaboard Air Line Railroad  Saint Louis Southwestern Railroad  and Lehigh Valley Railroad .
 None
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:
 NA: Boston and Maine Railroad, Saint Louis Southwestern Railroad