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He worked at the Lamont-Doherty Earth Observatory in Palisades , New York as Head of the Deep-Sea Sample Repository , after teaching briefly at Williams College in Williamstown , Massachusetts and the University of California , Davis .
 Palisades , New York, Williams College, Williamstown , Massachusetts, University of California , Davis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Palisades , New York, Williams College, Williamstown , Massachusetts, University of California , Davis