A coordination treatment based on multiple and disjunctive subcategorization

This paper proposes a modelization of the coordination within the framework of Head-driven Phrase Structure Grammar (HPSG), based on concepts of functor, arguments and subcategorization requirements. It enables coordination of more than one constituent as well as of different categories. This modelization lies on a lexicalization of the coordination principle and two generalizations of the notion of syntactic category. First, the coordination of different categories requires composite categories: disjunctive for subcategorization requirement, conjunctive for the coordinate structures. Second, the coordination of more than one constituent assumes that a sequence of constituents is represented as a tuple.