231999
Thereafter he was appointed as Sri Lankan Ambassador to Sweden in 1970 and he was the first Sri Lankan Ambassador in Sweden to be concurrently accredited to Denmark .
 Sri, Sweden, Sri, Sweden
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sri, Sweden, Sri, Sweden