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After completing the PhD , he went to work at the University of Rochester , Rochester , NY , where he was a professor of chemical engineering until 1997 .
 organization: University of Rochester; organization: Rochester
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: University of Rochester, Rochester 
Answer:
 organization: University of Rochester; organization: Rochester