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Nathan Smith born 21 April 1983 in Canberra , Australia is a rugby league player for the Penrith Panthers in the NRL .
 Nathan, Canberra, Australia, Penrith Panthers, NRL
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nathan, Canberra, Australia, Penrith Panthers, NRL