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Born in Greenville, North Carolina, he earned B. John S ., M.S. and Ph.D. degrees in electrical engineering from North Carolina State University . Following this, Mayo joined Bell Labs, now Alcatel-Lucent Bell Labs, (1955) where he first worked on early computers as the Triadic and Leprechaun, the Telstar satellite, ocean sonar systems and various switching systems. He was elected vice president at Bell Labs (1975) and eventually became the seventh president (1991) until his retirement (1995). He is credited with globalizing Bell Labs and forging closer ties between its research and development and business units.
 John S, North Carolina State University
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 John S, North Carolina State University