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In 1878 he organized a game billed as the ' National Championship ' between Union Lacrosse Club and Ravenswood Lacrosse Club of New York City .
 Lacrosse, Lacrosse
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Lacrosse, Lacrosse