92430
On rides with gauchos into the interior to explore geology and collect more fossils , Darwin gained social , political and anthropological insights into both native and colonial people at a time of revolution , and learnt that two types of rhea had separate but overlapping territories .
 person: Darwin
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: Darwin 
Answer:
 person: Darwin