314281
Source : Coleman , p. 271 Goalkeeper Averages Scoring Leaders Playoffs In the first " world series " of ice hockey , the Millionaires played the Ottawa Senators , NHA champions .
 Millionaires, Ottawa Senators, NHA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Millionaires, Ottawa Senators, NHA