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He entered the coaching ranks with jobs at his former high school , Columbia University , and Williams College , before being offered the defensive coordinator position by Tampa head coach Earle Bruce .
 Columbia University, Williams College, Tampa, Earle Bruce
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Columbia University, Williams College, Tampa, Earle Bruce