1973
From October 1990 until December 1993  Clark  held the posts of Deputy Leader of the  Opposition  Opposition spokesperson for Health and Labour and member of the Social Services Select Committee and of the Labour Select Committee .
 employee of: Clark, Opposition
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Clark, Opposition 
Answer:
 employee of: Clark, Opposition