INTEGRATION OF NOMINAL PREDICATES INTO A PARSER: AN EXPERIMENT WITH THE CONSTRUCTIONS WITH THE SUPPORT VERB DAR ‘GIVE’ IN BRAZILIAN PORTUGUESE
ABSTRACT This article describes the methodology for the integration of nominal predicates, that is, support verb constructions (SVC), in the XIP parser, which is used by STRING, a Portuguese processing chain. More specifically, 580 SVC with the support verb (Vsup) dar ‘give’ and a predicative noun (Npred), whose syntactic-semantic properties have been described, formalized and then integrated into the Portuguese grammar of XIP, by means of rules, in order to extract the syntactic dependency (noted SUPPORT) between the Npred and the Vsup. The need to automatically treat SVC derives from the fact that they are different from full-verb constructions, have complex syntactic structures, have specific syntactic-semantic properties, and allow several systematic, albeit lexically determined, syntactic transformations. The concept of SVC, as well as the lexical-syntactic approach here adopted, follows the theoretical and methodological principles of the Lexicon-Grammar theory. As a result of integrating these data into the XIP parser, the system achieved 85% precision, 87% recall, 80% accuracy and 86% F-measure on an evaluation corpus, specifically built for this purpose.