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He was appointed by Premier Ross Thatcher as Minister of Municipal Affairs from 1965 until 1971 and then as Minister of Education in the provincial cabinet from 1967 until the government 's defeat in the 1971 provincial election .
 Ross Thatcher, provincial cabinet, provincial
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ross Thatcher, provincial cabinet, provincial