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Leighfield has pursued a career in IT , initially in the 1960s with the Ford Motor Company , Plessey ( where he was Head of Management Services ) and British Leyland ( from the early 1970s ) .
 Leighfield, Ford Motor Company, Plessey, Management, British Leyland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Leighfield, Ford Motor Company, Plessey, Management, British Leyland