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Her appointments included fellowships at Harvard 's Museum of comparative zoology and at her alma mater , where she was a student of Alexander Grant Ruthven .
 organization: Harvard; person: Alexander Grant Ruthven
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: Harvard, Alexander Grant Ruthven 
Answer:
 organization: Harvard; person: Alexander Grant Ruthven