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In 1999 , Foo Hai Ch ' an Monastery took over the management of 270 beds in 11 single-storey wards which were formerly part of Tan Tock Seng Hospital .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None