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Grigore Alexandru Ghica or Ghika ( 1803 or 1807 – August 24 , 1857 ) was a Prince of Moldavia between October 14 , 1849 , and June 1853 , and again between October 30 , 1854 , and June 3 , 1856 .
 Grigore Alexandru Ghica, Ghika
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Grigore Alexandru Ghica, Ghika