Świgra is a parser of Polish generating constituency trees using a DCG style grammar stemming from Marek Świdzinski’s grammar “Gramatyka formalna jezyka polskiego” (1992). The grammar was heavily rewritten for the purpose of annotating the Skladnica treebank. The structure of trees was simplified with respect to Świdzinski’s version, many new types of constructions were included (in particular various forms of coordinated structures), a statistical disambiguating component was added. Moreover, the Clarin version of Świgra uses the valency dictionary Walenty developed within Clarin.