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On 15 January 2013 , after months of speculation , Jennings signed a 4-year contract with the Sydney Roosters starting in 2013 , after being officially released by the Penrith Panthers .
 Jennings, Sydney Roosters, Penrith Panthers
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jennings, Sydney Roosters, Penrith Panthers