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Eventually the worries of a rigid court at Rideau Hall and the " feeble undercurrent of criticism " turned out to be unfounded as the royal couple proved to be more relaxed than their predecessors .
 Rideau Hall
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rideau Hall