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His uncle Gavriil Callimachi ( 1689 – 1786 ) was a monk at Putna Monastery before he founded the St. George Cathedral in Iaşi .
 Gavriil Callimachi, Iaşi
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gavriil Callimachi, Iaşi