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By some time in the mid 20th century another extirpation due to over-hunting occurred in Trinidad with its population of horned screamer ( a large game bird ) .
 location: Trinidad
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: Trinidad 
Answer:
 location: Trinidad