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The blonde Australian opened with a level par round of 70 in Akron , leaving him four shots adrift of the leaders , Americans Billy Mayfair and Paul Goydos and Japan 's Hidemichi Tanaki .
 Akron, Japan, Hidemichi Tanaki, Billy Mayfair, Americans, Paul Goydos, Australian
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Akron, Japan, Hidemichi Tanaki, Billy Mayfair, Americans, Paul Goydos, Australian