Premise: Zapatero visited the following cities in four days: Brasilia, São Paulo, Buenos Aires and Santiago de Chile. According to official sources these visits are the last part of the project he began at the EU-Latin American Summit in Guadalajara, Mexico and pursued in the Ibero-American meeting in Costa Rica in November.
Hypothesis: Zapatero pursued in the Ibero-American meeting in Costa Rica in the second to last month of the year.