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Federal politics Cook entered the Australian House of Representatives in 1919 as the Country Party member for Indi , defeating sitting member John Leckie .
 Cook, Country Party, John Leckie
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cook, Country Party, John Leckie