БТБ-Валентен речник. The Valency Lexicon is a treebank-driven resource of extracted valency frames from BulTreeBank. It consists of 1000 most frequent verbs and their valence frames and it is based on a paper dictionary compiled by Balabanova and Ivanova. Each frame defines the number and the kind of the arguments and imposes morphosyntactic and semantic restrictions over them. The semantic restrictions over the arguments are extracted and matched against the SIMPLE core ontology. The frames of the most frequent verbs are compared to the corpus data and repaired if necessary (new frames are added, some of the existing frames are deleted or fine-grained).