A Reversible and Reusable Morpho-Lexical Description of Romanian

Constructing a natural language dictionary and/or a grammar for computational use is a farreaching project, requiring very important human and material resources. Generalisation of the lexical approaches in natural language modelling confers an essential role to the dictionary in every system for automatic natural language processing. More and more information, which was traditionally encoded by grammar rules (syntax), enters the dictionary. Thus, specific linguistic knowledge is encapsulated into lexical structures, while the syntax only encodes generic rules, conceptual restrictions, which get instantiated through specific lexical elements. Modern linguistic theories, such as Lexical-Functional Grammar (LFG), Categorial Grammars (CG), Head-driven Phrase Structure Grammar (HPSG) or Lexicalized Tree Adjoining Grammar (LTAG), emphasise the essential contribution of the lexical specifications to defining and representing the grammatical restrictions.