Construction of a Japanese Relevance-tagged Corpus

This paper describes our corpus annotation project. The annotated corpus has relevance tags which consist of predicate-argument re-lations, relations between nouns, and corefer-ences. To construct this relevance-tagged cor-pus, we investigated a large corpus and estab-lished the specification of the annotation. This paper shows the specification and difficult tag-ging problems which have emerged through the annotation so far. 1