README for Penn Treebank CDROM Release 3
	       ========================================

This CDROM contains the following previously released material:

	+ WSJ tagged and parsed text
	+ Atis tagged and parsed text
	+ Brown tagged text (parsed text is new)

and the following new material:

	+ Switchboard tagged, dysfluency-annotated, and parsed text
	+ Brown parsed text

For information about the WSJ and Atis data, see the README.cd2 in the
docs/ directory. 

The Switchboard dataset includes:

	+ 1126 files tagged and dysfluency-annotated
	+ 650 files parsed (a subset of the 1126)

These files are organized into 3 subdirectories, named "2","3","4",
according to the initial digit of the 4-digit file-id number. The
number of files per directory is shown here:

    tagged and dysfluency-annotated:
	2/  455 files
	3/  477 files
	4/  194 files
    parsed:
	2/  236 files
	3/  260 files
	4/  154 files

The Brown Corpus dataset includes the following Brown subsets:

	+ cf	popular lore
	+ cg	belles lettres, biography, memoires, etc.
	+ ck	general fiction
	+ cl	mystery and detective fiction
	+ cm	science fiction
	+ cn	adventure and western fiction
	+ cp	romance and love story
	+ cr	humor

all subsets are complete except /cf which contains files 1-32 and /cg which
contains files 1-36.

Directory structure

	readme.1st			- this file

	readme.all			- concatenation of all other
					  readme files in this release
					  (these are all found within the
					  directories listed below)

	tagged/				- part-of-speech tags only
		pos/
			atis/
			brown/c*/
			swbd/{2,3,4}/
			wsj/

	dysfl/
		dff/			- dysfluency annotation only
			swbd/{2,3,4}/
		mgd/			- dysfluency annotation and
					  part-of-speech tags
			swbd/{2,3,4}/
		dps/			- dysfluency annotation,
					  part-of-speech tags and turns
					  joined 
			swbd/{2,3,4}/

	parsed/
		prd/			- syntactic annotation only
			atis/
			brown/c*/
			swbd/{2,3,4}/
			wsj/
		mrg/			- syntactic annotation and part-
					  of-speech tags
			atis/
			brown/c*/
			swbd/{2,3,4}/
			wsj/

	docs/				- annotation style manuals and
					  other information