IRCS Technical Reports Series

Document Type

Technical Report

Date of this Version



This report contains the guidelines for the annotation of discourse relations in the Penn Discourse Treebank (, PDTB. Discourse relations in the PDTB are annotated in a bottom up fashion, and capture both lexically realized relations as well as implicit relations. Guidelines in this report are provided for all aspects of the annotation, including annotation explicit discourse connectives, implicit relations, arguments of relations, senses of relations, and the attribution of relations and their arguments. The report also provides descriptions of the annotation format representation.


natural language processing, discourse analysis, discourse structure, discourse coherence, annotation



Date Posted: 04 May 2011