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Along with Horacio Verbitsky , Nicolás Casullo and others created Espacio Carta Abierta ( " Open Letter Spot " ) in 2008 .
 Horacio Verbitsky
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Horacio Verbitsky