8053
The school also employed a number of the nation 's leading scientists , including Enrico Fermi and Edward Teller , along with operating the famous Yerkes Observatory .
 person: Enrico Fermi; person: Edward Teller; location: Yerkes 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: Enrico Fermi, Edward Teller, Yerkes Observatory 
Answer:
 person: Enrico Fermi; person: Edward Teller; location: Yerkes Observatory