F. Sánchez-Martínez, I. Martínez-Sempere, X. Ivars-Ribes, and R. Carrasco. (2013)cite arxiv:1306.3692Comment: The part of this paper describing the IMPACT-es corpus has been accepted for publication in the journal Language Resources and Evaluation (http://link.springer.com/article/10.1007/s10579-013-9239-y).