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The Queen of New Zealand , represented in the Cook Islands by the Queen 's Representative , is the Head of State ; the prime minister is the head of government and of a multi-party system .
 New Zealand, Cook Islands
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 New Zealand, Cook Islands