3984
The track was put up for auction by  Speedway Motorsports  Inc and chairman  Bruton Smith  .
 top members employees: Speedway Motorsports, Bruton Smith
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:
 top members employees: Speedway Motorsports, Bruton Smith