48140
The station would soon become one of the most important military posts of the Congo Free State with a permanent staff of seventeen whites , six hundred native soldiers and four artillery pieces .
 location: Congo
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: Congo 
Answer:
 location: Congo