Análisis del Castellano guiado por una Jerarquía Preposicional

There are either morphological cases or cases asigned by word order and prepositions which determine function and semantic role of the arguments. We propose to lead parser by prepositional case to analize semifree order languages. In Spanish, word order and agreement will identify subject and inanimate direct object whereas prepositions will do the rest. Prepositions express grammatical relations between the elements which the bind. They demand semantic agreement between them and their argument and the verb. If we previously state relations which prepositions express and semantic values that they can have, we will be able to parse by obtaining function and semantic role of arguments. This will allow us to parse without referring to word order and to restrict the combinations between verbs, prepositions and NPs semantically.