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During the suspension of the monarchy , Girija Prasad Koirala , then Prime Minister of Nepal , acted as Head of State .
 Girija Prasad Koirala, Nepal
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Girija Prasad Koirala, Nepal