351288
A 12.25 inch Clark Refractor was installed in a dome that Dr. Pritchett modeled after the Harvard College Observatory .
 person: Clark; person: Pritchett; organization: Harvard College Observatory
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: Clark, Pritchett, Harvard College Observatory 
Answer:
 person: Clark; person: Pritchett; organization: Harvard College Observatory