An ontology of systematic relations for a shared grammar of Slavic

Sharing portions of grammars across languages greatly reduces the costs of nutltilingual grammar engineering. Related languages share a ntuch wider range of linguistic itff'ornuttio;t than typically assunwd in stamlard mttltilingttal gramtmtr atwhitectures. Taking grammatical relatedness seriously, we are particularly interested in designing lhtguistically motivated grammatical resottrces Jbr Slavic languages to be used itz applied and theoretical computational linguistics, ht order to gain the pelwpective of a language-family oriented gramntar desigtl, we consider {ttt arrtly of systematic relations that can hold between syntactical units. While the categorisation of primitive linguistic entities tends to be language-specilic or even constrttction-.~pecific, the relations holding between them allow viii'lofts degrees of absltztction. On the basis of Slavic &tta, we show how a domain ontology conceptualising molphosyntaclic "buildiltg blocks" can serve as a basis r~" a shared grotlt;nar of Slavic.