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Miller returned to  London  's Covent Garden in April 1981 to fulfil one half of a Royal Ballet production portraying the legendary artistic dancer Isadora Duncan in  Kenneth MacMillan  's ballet Isadora .
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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:   
Answer:
 NA: London, Kenneth MacMillan