235893
Thereafter , he undertook post-graduate professional training in the United Kingdom from 1981 to 1982 , which led to his qualification as an associate member of the Nigeria Institute of Quantity Surveyors .
 United Kingdom, Nigeria
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United Kingdom, Nigeria