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Lord Glenarthur was director of Lewis Group in 1993 and 1994 was consultant to  Chevron   UK  Ltd from 1994 to 1997 and director of Millennium Chemicals from 1996 to 2004 .
 city of headquarters: Chevron, UK
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: 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} 
Answer:
 city of headquarters: Chevron, UK