This directory contains documentation of the annotation styles used by Treebank. Note that formal papers are presented in both PostScript and Adobe Acrobat "pdf" formats. tagguide1.{ps,pdf} - part-of-speech stylebook tagguide2.{ps,pdf} - addendum to the part-of-speech stylebook, outlining changes and new policy for Switchboard dflguide.{ps,pdf} - dysfluency annotation stylebook for Switchboard parseguide1.{ps,pdf} - syntactic annotation stylebook Treebank II (note this file is very large) parseguide2.{ps,pdf} - addendum to the syntactic annotation stylebook outlining changes and new policy for Switchboard arpa94.{ps,pdf} - Marcus et al. 1994, "The Penn Treebank: Annotating Predicate Argument Structure", presented at the ARPA Human Language Technology Workshop, March 1994. Introduction to Treebank II bracketing style. bracket.txt - informal notes with additional information on new policies affecting Switchboard and Brown changes.txt - a summary of tag and label changes affecting Switchboard and Brown annotation README.cdrom2 - the README file from the Penn Treebank 2 release containing information on the WSJ and Atis data