418
The research of the investigation commission was documented in the Nunca Más ( Never Again ) report , which was a complete summary published as an official report in Spanish , and delivered to Alfonsín on 20 September 1984 , which opened the doors to the trial of the military juntas of the dictatorship .
 Alfonsín
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Alfonsín