This is the stand-off GrAF version of the Basque Dependency Treebank (BDT). It is the Reference Corpus for the Processing of Basque (EPEC) annotated at syntactic level. EPEC is a 300,000 word corpus of standard written journal texts which aims to be a training corpus for the development and inprovement of several Natural Language Procesing tools. It has been manually tagged at different levels: morphology, partial syntax and semantic This is the stand-off GrAF version of the Constituent Basque Treebank.