179594
Ancistrus leucostictus is a species of armored catfish native to Guyana where it is found in the Essequibo River basin .
 location: Guyana
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: Guyana 
Answer:
 location: Guyana