79023
Foreign companies settled in Iquitos , from whence they controlled the extraction of rubber .
 location: Iquitos
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: Iquitos 
Answer:
 location: Iquitos