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Rod Ellis received a ((NAM: Master of Arts  of Arts)) from the University of Leeds, a Master of Education from the University of Bristol, and a doctorate from the University of London. He is a leading theorist of task-based language learning, and has published two books and more than a dozen articles on the subject. Since 1980, he has authored more than 30 books and 100 articles on second language acquisition.
 education degree: Rod Ellis, Master of Arts 
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
 Entity Pairs:  Rod Ellis, Master of Arts  
Answer:
 education degree: Rod Ellis, Master of Arts 