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Rugby is centred on the national capitals , and main cities , Cotonou and Porto-Novo , both of which are on the south coast .
 Rugby, Cotonou, Porto-Novo
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rugby, Cotonou, Porto-Novo