A simple reconstruction of GPSG

摘要: Like most linguistic theories, the theory of generalized phrase structure grammar (GPSG) has described language axiomatically, that is, as a set universal and language-specific constraints on well-formedness elements some sort. The coverage detailed analysis English in ambitious recent volume by Gazdar, Klein, Pullum, Sag entitled Generalized Phrase Structure Grammar [2] are impressive, part because complexity axiomatic system developed authors. In this paper. We examine possibility simpler descriptions same can be achieved through slightly different, albeit still axiomatic, method, Rither than characterize well-formed trees directly, we progress two stages procedurally characterizing axioms themselves, which turn trees.