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After postdoctoral studies at Yale University from 1966 to 1968 , Plummer took an assistant professorship in the recently-formed Department of Computer Science at City College of New York .
 Yale University, City College of New York
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Yale University, City College of New York