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Hammett was also the head basketball coach at Northwestern ( 1911 – 1912 ) and Allegheny ( 1913 – 1918 , 1919 – 1920 , 1921 – 1922 ) , tallying a career college basketball mark of 60 – 41 .
 Hammett, Northwestern, Allegheny
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hammett, Northwestern, Allegheny