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The " hingemouth " ( " Phractolaemus ansorgii " ) is a small freshwater fish that is found only in west central Africa , the sole member of the family " Phractolaemidae " .
 location: Africa
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: Africa 
Answer:
 location: Africa