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When in 1991 Ramón Puerta was elected Governor of Misiones , Viana joined his administration as subsecretary of coordination of the provincial Ministry of Public Works but soon resigned to become intervenor of the sanitary works administration .
 Ramón Puerta, Misiones, Viana
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ramón Puerta, Misiones, Viana