... together. LingGO-ERG is based on Head-driven Phrase Structure Grammar (HPSG), a unification-based grammar formalism. HPSG provides a mono-stratal lexicalist framework that facilitates handling ... macro call): abide: @V_P_by(abide, by, abide_by, V 6A, APPROVING_AGREEING) accede: @V_P _to( accede, to, accede _to, V 6A, APPROVING_AGREEING) add: @V_P(add, up, add_up, V 2A, MATH_REASONING); ... phenomena that can not be covered by non -lexical approaches. Unlike the extreme lexicalized word expert system in [Small and Rieger 1982] and similar to the IDAREX local grammar formalism [Breidt...