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In 1983 , Hu became the Managing Director of the Monetary Authority of Singapore ( MAS ) and the Government of Singapore Investment Corporation ( GIC ) , holding both posts concurrently until 1984 .
 Hu, Singapore, Government of Singapore Investment Corporation
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hu, Singapore, Government of Singapore Investment Corporation