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In terms of barrio-to-barrio boundaries , Primero is bounded in the North by Barrio Segundo , in the South by Canas Urbano , in the West by Barrio Canas Urbano , and in the East by Barrio Cuarto .
 Primero, Segundo, Canas Urbano, Canas Urbano, Cuarto
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Primero, Segundo, Canas Urbano, Canas Urbano, Cuarto