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Sidney Moko Mead became a headmaster of several schools in the region. His first appointment as headmaster was at Minginui Maori School in the Urewera Valley, where he remained in the position for eight years. He later took up headmaster positions at Waimarama Maori School and Whatawhata School. Formalising his academic qualifications, Mead earned a Diploma in teaching in 1962, followed by Bachelor and Master of Arts degrees at the University of Auckland, which were both completed by 1965. Mead earned his PhD at the University of Southern Illinois University System Illinois in 1968, with his former teacher Bruce Biggs acting as one of his supervisors.
 education institution: Sidney Moko Mead, Southern Illinois University System
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: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 education institution: Sidney Moko Mead, Southern Illinois University System