1. Andersen (2016). Fairy tales of Hans Christian Andersen (Spanish). Available 28/11/2016 at https://es.wikisource.org/wiki/Cuentos_clásicos_para_ni~nos.
2. Anonymous (2016). Traditional Spanish tales. Available 28/11/2016 at http://loscuentostradicionales.blogspot.com.es.
3. Ancora-verb: A lexical resource for the semantic annotation of corpora;Aparicio,2008
4. Planning english sentences;Appelt,1985
5. Freeling 1.3: Syntactic and semantic services in an open-source NLP library;Atserias,2006