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Other notable astronomers to use the observatory included Eduard Vogel , Charles George Talmage , and Norman Robert Pogson .
 person: Eduard Vogel; person: Norman Robert Pogson
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: Eduard Vogel, Norman Robert Pogson 
Answer:
 person: Eduard Vogel; person: Norman Robert Pogson