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The  Middlesbrough Bears  were a British speedway team which operated under various names from  1939  until their closure in 1996 .
 founded: Middlesbrough Bears, 1939
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Middlesbrough Bears, 1939 
Answer:
 founded: Middlesbrough Bears, 1939