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.
Can we infer the following?
The European Union was associated with this event

Select from the following.
 - Yes
 - It's impossible to say
 - No
The answer is:
Yes