21968
He invited the chieftains of the former satrapy of Gandhara ( a region presently straddling eastern Afghanistan and northern Pakistan ) , to come to him and submit to his authority .
 location: Gandhara; location: Afghanistan; location: Pakistan
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: Gandhara, Afghanistan, Pakistan 
Answer:
 location: Gandhara; location: Afghanistan; location: Pakistan