ABSTRACT
A generative grammatical formalism developed by Kay (1979) within the family of unification grammars. In FUG, all grammatical representations take the form of feature structures. Feature structures of syntactic units, which represent the phrase structure, comprise two attributes. The value of the attribute CSET contains the immediate constituents; the value of the attribute PATTERN is a (partial) specification of the linear order of these constituents. The rules of FUG are also feature structures. The grammar is the disjunction of all grammar rules and of all lexical entries, which must be in a specific place with respect to the representation of every syntactic unit. FUG forms the basis for numerous experimental natural-language systems.
