3502
The  Ultimate Fighting Championship  ( UFC ) is a mixed martial arts ( MMA ) promotion founded in 1993 by  Art Davie  and Rorion Gracie .
 founded by: Ultimate Fighting Championship, Art Davie
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:
 founded by: Ultimate Fighting Championship, Art Davie