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Happy Birthday to our Dearest Mother , " read a placard at the Shishu Bhavan children 's home in central Calcutta run by Mother Teresa 's Missionaries of Charity .
 Mother Teresa, Missionaries of Charity, Calcutta, Shishu Bhavan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Mother Teresa, Missionaries of Charity, Calcutta, Shishu Bhavan